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| Ridgefield Acquisition Corp.                           |
|--------------------------------------------------------|
| (Exact name of registrant as specified in its Charter) |

| Nevada                          |   | 84-0922701             |
|---------------------------------|--------|------------------------|
| (State or other jurisdiction of |   | (I.R.S. Employer       |
| incorporation or organization)  |   | Identification Number) |

| 225 N.E. Mizner Boulevard, Suite 400 Boca Raton, Florida 33432 |
|----------------------------------------------------------------|
| (Address of Principal Executive Office) (Zip Code)             |

| (561) 362-5385                                      |
|-----------------------------------------------------|
| (Registrant's telephone number including area code) |

| Large accelerated filer |  ̈ | Accelerated filer         |  ̈ |
|-------------------------|--------|---------------------------|--------|
|                    |   |                      |   |
| Non-accelerated filer   |  ̈ | Smaller reporting company | x      |

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|       |   |                                                                                                                                               |   | Page   |
|------------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------|
|       |   |                                                                                                                                               |   |   |   |
| PART I     |   | FINANCIAL INFORMATION                                                                                                                              |   | 3      |   |
|       |   |                                                                                                                                               |   |   |   |
| Item 1.    |   | Financial Statements                                                                                                                               |   | 3      |   |
|       |   |                                                                                                                                               |   |   |   |
|       |   | Consolidated Balance Sheets as of June 30, 2011 (unaudited) and December 31, 2010                                                                  |   | 3      |   |
|       |   |                                                                                                                                               |   |   |   |
|       |   | Consolidated Statements of Operations and Comprehensive Income (Loss) for the Three Months and Six Months Ended June 30, 2011 and 2010 (unaudited) |   | 4      |   |
|       |   |                                                                                                                                               |   |   |   |
|       |   | Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2011 and 2010(unaudited)                                                   |   | 5      |   |
|       |   |                                                                                                                                               |   |   |   |
|       |   | Notes to Condensed Consolidated Financial Statements                                                                                               |   | 6      |   |
|       |   |                                                                                                                                               |   |   |   |
| Item 2.    |   | Management Discussion and Analysis of Financial Condition and Results of Operations                                                                |   | 8      |   |
|       |   |                                                                                                                                               |   |   |   |
| Item 4.    |   | Controls and Procedures                                                                                                                            |   | 10     |   |
|       |   |                                                                                                                                               |   |   |   |
| PART II    |   | OTHER INFORMATION                                                                                                                                  |   | 11     |   |
|       |   |                                                                                                                                               |   |   |   |
| Item 1.    |   | Legal Proceedings                                                                                                                                  |   | 11     |   |
|       |   |                                                                                                                                               |   |   |   |
| Item 5.    |   | Other Information                                                                                                                                  |   | 11     |   |
|       |   |                                                                                                                                               |   |   |   |
| Item 6.    |   | Exhibits                                                                                                                                           |   | 11     |   |
|       |   |                                                                                                                                               |   |   |   |
| SIGNATURES |   | 13                                                                                                                                                 |   |

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|                                                                                                |   | June 30,    |       |   | December 31, |   |
|----------------------------------------------------------------------------------------------------------|--------|-------------|------------|--------|--------------|--------|
|                                                                                                     |   | 2011        |       |   | 2010         |   |
|                                                                                                     |   | (Unaudited) |       |   |         |   |
|                                                                                                     |   |        |       |   |         |   |
| ASSETS                                                                                                   |   |        |       |   |         |   |
|                                                                                                     |   |        |       |   |         |   |
| CURRENT ASSETS                                                                                           |   |        |       |   |         |   |
| Cash and cash equivalents                                                                                |   | $           | 73,025     |   |         | $      | 889,887 |   |
|                                                                                                     |   |        |       |   |         |   |   |   |
| TOTAL ASSETS                                                                                             |   | $           | 73,025     |   |         | $      | 889,887 |   |
|                                                                                                     |   |        |       |   |         |   |   |   |
| LIABILITIES AND STOCKHOLDERS' EQUITY                                                                     |   |        |       |   |         |   |   |   |
|                                                                                                     |   |        |       |   |         |   |   |   |
| CURRENT LIABILITIES                                                                                      |   |        |       |   |         |   |   |   |
| Accounts payable and accrued expenses                                                                    |   | $           | 8,374      |   |         | $      | 946 |   |
| Accrued income tax                                                                                       |   |        | —    |   |         |   | 13,411 |   |
| TOTAL CURRENT LIABILITIES                                                                                |   |        | 8,374      |   |         |   | 14,357 |   |
|                                                                                                     |   |        |       |   |         |   |   |   |
| STOCKHOLDERS' EQUITY                                                                                     |   |        |       |   |         |   |   |   |
| Preferred stock, $.01 par value; authorized - 5,000,000 shares, Issued - none                            |   |        | —    |   |         |   | — |   |
| Common stock, $.001 par value; authorized - 30,000,000 shares, Issued and outstanding - 1,260,773 shares |   |        | 1,261      |   |         |   | 1,261 |   |
| Capital in excess of par value                                                                           |   |        | 2,272,883  |   |         |   | 2,272,883 |   |
| Accumulated deficit                                                                                      |   |        | (2,209,493 | )      |         |   | (1,398,614 | ) |
|                                                                                                     |   |        |       |   |         |   |   |   |
| TOTAL STOCKHOLDERS' EQUITY                                                                               |   |        | 64,651     |   |         |   | 875,530 |   |
|                                                                                                     |   |        |       |   |         |   |   |   |
| TOTAL LIABILITIES & STOCKHOLDERS' EQUITY                                                             |   | $           | 73,025     |   |         | $      | 889,887 |   |

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|                                                         |   | Three Months Ended |      |   | Six Months Ended |   |
|--------------------------------------------------------------|--------|--------------------|-----------|--------|------------------|--------|
|                                                         |   | June 30,           |      |   | June 30,         |   |
|                                                         |   | 2011               |      |   | 2010             |   |   | 2011 |   |   | 2010 |   |
|                                                         |   |               |      |   |             |   |   |   |   |   |   |   |
| General and administrative expenses                          |   | $                  | 30,654    |   |             | $      | 8,240 |   |   | $ | 42,879 |   |   | $ | 21,274 |   |
| TOTAL EXPENSES                                               |   |               | 30,654    |   |             |   | 8,240 |   |   |   | 42,879 |   |   |   | 21,274 |   |
| OTHER INCOME                                                 |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| Interest Income                                              |   |               | 357       |   |             |   | 673 |   |   |   | 1,408 |   |   |   | 817 |   |
| Realized gain on investments                                 |   |               | —   |   |             |   | 25,734 |   |   |   | — |   |   |   | 272,134 |   |
| TOTAL OTHER INCOME                                           |   |               | 357       |   |             |   | 26,407 |   |   |   | 1,408 |   |   |   | 272,951 |   |
|                                                         |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| NET INCOME (LOSS) BEFORE TAXES                               |   |               | (30,297   | )      |             |   | 18,167 |   |   |   | (41,471 | ) |   |   | 251,677 |   |
| INCOME TAXES                                                 |   |               | (12,944   | )      |             |   | — |   |   |   | (12,944 | ) |   |   | — |   |
| NET INCOME (LOSS)                                            |   | $                  | (43,241   | )      |             | $      | 18,167 |   |   | $ | (54,415 | ) |   | $ | 251,677 |   |
| OTHER COMPREHENSIVE INCOME/(LOSS)                            |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| Reclassification adjustment for gains included in net income |   |               | —   |   |             |   | (13,412 | ) |   |   | — |   |   |   | (239,548 | ) |
| OTHER COMPREHENSIVE INCOME/(LOSS)                            |   |               | —   |   |             |   | (13,412 | ) |   |   | — |   |   |   | (239,548 | ) |
|                                                         |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| COMPREHENSIVE INCOME                                         |   | $                  | —   |   |             | $      | 4,755 |   |   | $ | — |   |   | $ | 12,129 |   |
|                                                         |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| NET INCOME  PER COMMON SHARE                       |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| Basic and Dilutive                                           |   | $                  | (.03      | )      |             | $      | .01 |   |   | $ | (.04 | ) |   | $ | .20 |   |
|                                                         |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING         |   |               |      |   |             |   |   |   |   |   |   |   |   |   |   |   |
| Basic and Dilutive                                           |   |               | 1,260,773 |   |             |   | 1,260,773 |   |   |   | 1,260,773 |   |   |   | 1,260,773 |   |

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|                                                                               |   | Six Months Ended |     |
|------------------------------------------------------------------------------------|--------|------------------|----------|
|                                                                               |   | June 30          |     |   | June 30, |   |
|                                                                               |   | 2011             |     |   | 2010 |   |
|                                                                               |   |             |     |   |   |   |
| CASH FLOWS FROM OPERATING ACTIVITIES                                               |   |             |     |   |   |   |
| Net income (loss)                                                                  |   | $                | (54,415  | ) |   | $ | 251,677 |   |
| Adjustment to reconcile net income (loss) to net cash used in operating activities |   |             |     |   |   |   |   |   |
| Stock issued for professional services                                             |   |             | —  |   |   |   | 9,000 |   |
| Realized gain on sales of investments                                              |   |             | —  |   |   |   | (272,134 | ) |
| Changes in assets and liabilities                                                  |   |             |     |   |   |   |   |   |
| Increase (decrease) accounts payable and accrued expenses                          |   |             | (5,983   | ) |   |   | (9,201 | ) |
|                                                                               |   |             |     |   |   |   |   |   |
| Net Cash Used in Operating Activities                                              |   |             | (60,398  | ) |   |   | (20,658 | ) |
|                                                                               |   |             |     |   |   |   |   |   |
| CASH FLOWS FROM INVESTING ACTIVITIES                                               |   |             |     |   |   |   |   |   |
| Proceeds from sale of investments                                                  |   |             | —  |   |   |   | 608,902 |   |
|                                                                               |   |             |     |   |   |   |   |   |
| Net Cash Provided by Investing Activities                                          |   |             | —  |   |   |   | 608,902 |   |
|                                                                               |   |             |     |   |   |   |   |   |
| CASH FLOWS FROM FINANCING ACTIVITIES                                               |   |             |     |   |   |   |   |   |
| Payment for distribution of dividends                                              |   |             | (756,464 | ) |   |   | — |   |
|                                                                               |   |             |     |   |   |   |   |   |
| Net Cash used in Financing Activities                                              |   |             | (756,464 | ) |   |   | 608,902 |   |
|                                                                               |   |             |     |   |   |   |   |   |
| NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                               |   |             | (816,862 | ) |   |   | 588,244 |   |
|                                                                               |   |             |     |   |   |   |   |   |
| CASH AND CASH EQUIVALENTS, BEGINNING OF PERIODS                                    |   |             | 889,887  |   |   |   | 307,409 |   |
|                                                                               |   |             |     |   |   |   |   |   |
| CASH AND CASH EQUIVALENTS, END OF PERIODS                                          |   | $                | 73,025   |   |   | $ | 895,653 |   |

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| Item 2.  | Management's Discussion and Analysis of Financial Condition and Results of Operations |
|---------------|---------------------------------------------------------------------------------------|

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| 3.1    | Articles of Incorporation, incorporated by reference to Registration Statement No. 33-13074-D as Exhibit 3.1.                                                                                   |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                            |
| 3.2    | Amended Bylaws adopted June 1, 1987, incorporated by reference to Annual Report on Form 10-K for the fiscal year ended December 31, 1987 as Exhibit 3.2.                                        |
|   |                                                                                                                                                                                            |
| 3.4    | Articles of Amendment to Restated Articles of Incorporation dated March 7,1991. Incorporated by reference to Annual Report on Form 10-K for fiscal year ended December 31, 1990 as Exhibit 3.4. |

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| 3.5    | Articles of Amendment to Restated Articles of Incorporation dated March 17, 1999, incorporated by reference to the Company's Current Report on Form 8-K reporting an event of March 9, 1999.                                                    |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                            |
| 3.6    | Articles of Incorporation of Bio-Medical Automation, Inc. a Nevada corporation, the Company's wholly owned subsidiary.                                                                                                                          |
|   |                                                                                                                                                                                                                                            |
| 3.7    | By-laws of Bio-Medical Automation, Inc. a Nevada corporation, the Company's wholly owned subsidiary.                                                                                                                                            |
|   |                                                                                                                                                                                                                                            |
| 10.1   | OEM Purchase Agreement dated January 15, 1990, between the Company and Ariel Electronics, Inc. incorporated by reference to Annual Report on Form 10-K for the fiscal year ended December 31, 1989 as Exhibit 10.1.                             |
|   |                                                                                                                                                                                                                                            |
| 10.2   | Form of Convertible Promissory Note, 12/30/93 Private Placement incorporated by reference to Annual Report on Form 10-KSB for the fiscal year ended December 31, 1993 as Exhibit 10.2.                                                          |
|   |                                                                                                                                                                                                                                            |
| 10.3   | Form of Non-Convertible Promissory Note, 12/30/93 Private Placement incorporated by reference to Annual Report on Form 10-KSB for the fiscal year ended December 31, 1993 as Exhibit 10.3.                                                      |
|   |                                                                                                                                                                                                                                            |
| 10.4   | Form of Note Purchaser Warrant Agreement and Warrant, 12/30/93 Private Placement incorporated by reference to Annual Report on Form 10-KSB for the fiscal year ended December 31, 1993 as Exhibit 10.4.                                         |
|   |                                                                                                                                                                                                                                            |
| 10.5   | Form of Promissory Note, April 1, 1996.                                                                                                                                                                                                         |
|   |                                                                                                                                                                                                                                            |
| 10.6   | Form of Security Agreement, April 1, 1996.                                                                                                                                                                                                      |
|   |                                                                                                                                                                                                                                            |
| 10.7   | Form of Common Stock Purchase Warrant, April 1, 1996.                                                                                                                                                                                           |
|   |                                                                                                                                                                                                                                            |
| 10.8   | Form of Promissory Note, July 1, 1996.                                                                                                                                                                                                          |
|   |                                                                                                                                                                                                                                            |
| 10.9   | Form of April 1, 1996 Promissory Note Extension, October 17, 1996.                                                                                                                                                                              |
|   |                                                                                                                                                                                                                                            |
| 10.10  | Form of Common Stock Purchase Warrant, October 10, 1996.                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                            |
| 10.11  | Asset Purchase Agreement with JOT incorporated by reference to Form 8-K reporting an event of November 4, 1998, and amendment thereto incorporated by reference to Form 8-K reporting an event of December 15, 1998.                            |
|   |                                                                                                                                                                                                                                            |
| 10.12  | Stock Purchase Agreement, between Bio-Medical Automation, Inc. and Steven N. Bronson, incorporated by reference to the Current Report on Form 8-K filed on April 6, 2000.                                                                       |
|   |                                                                                                                                                                                                                                            |
| 10.13  | Employment Agreement between Bio-Medical Automation, Inc. and Steven N. Bronson, dated as of March 24, 2001, incorporated by reference to Quarterly Report on Form 10-QSB for the quarter ended March 31, 2001.                                 |
|   |                                                                                                                                                                                                                                            |
| 10.14  | Mergers and Acquisitions Advisory Agreement, dated as of November 13, 2001, between Bio-Medical Automation, Inc. and Catalyst Financial LLC incorporated by reference to the Annual Report on Form 10-KSB for the year ended December 31, 2001. |

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| 10.15  | Mergers and Acquisitions Advisory Agreement, dated as of April 1, 2005, between Ridgefield Acquisition Corp. and Catalyst Financial LLC.                                            |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                |
| 10.16  | Appointment of Atlas Stock Transfer Agent Corporation as the transfer Agent for Ridgefield Acquisition Corp.                                                                        |
|   |                                                                                                                                                                                |
| 10.17  | Employment Agreement between Ridgefield Acquisition Corp. and Steven N. Bronson, dated as of March 28, 2006.                                                                        |
|   |                                                                                                                                                                                |
| 10.18  | Addendum, dated as of February 1, 2006, to Mergers and Acquisitions Advisory Agreement, dated as of April 1, 2005, between Ridgefield Acquisition Corp. and Catalyst Financial LLC. |
|   |                                                                                                                                                                                |
| 14     | Code of Ethics                                                                                                                                                                      |
|   |                                                                                                                                                                                |
| 31*    | President's Written Certification Of Financial Statements Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                |
|   |                                                                                                                                                                                |
| 32*    | President's Written Certification Of Financial Statements Pursuant to 18 U.S.C. Statute 1350.                                                                                       |

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|      | RIDGEFIELD ACQUSITION CORP.     |
|-----------|---------------------------------|
|      |                            |
| By:  | /s/ Steven N. Bronson           |
|      | Steven N. Bronson, President    |
|      | (Principle Executive Officer),  |
|      | as Registrant's duly authorized |
|      | officer                         |

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| Exhibit |   |                                                                                          |
|---------|--------|-----------------------------------------------------------------------------------------------|
| Number  |   | Description of Document                                                                       |
|    |   |                                                                                          |
| 31      |   | President's Statement Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.              |
|    |   |                                                                                          |
| 32      |   | President's Written Certification Of Financial Statements Pursuant to 18 U.S.C. Statute 1350. |

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