UNITED STATES
SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 10-QSB/A

Amendment No. 4

{X} QUARTERLY
REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the
quarterly period ended March 31, 2004.

{   } TRANSITION
REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACTFor  the transition period from
_______ to ________.

Commission File
No. 0-27599

SULPHCO, INC.

(Name of the small
business issuer)

|Nevada                   | 88-0224817                          
|------------------------ | ------------------------------------
|(State of Incorporation) | (I.R.S. Employer Identification No.)

850 Spice Islands
Drive, Sparks, NV 89431(Address of principal executive offices)

(775) 829-1310
(Issuers telephone number)

Number of shares
outstanding of each of the issuers classes of common equity, as of the latest
practicable date: 50,820,083 shares of common stock issued and outstanding as of April 30,
2004.

Transitional Small
Business Disclosure Format: Yes {  } No {X}

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EXPLANATORY NOTE

SulphCo,
Inc. (the Company) is filing this Amendment No. 4 to Form 10-QSB/A
(Amendment No. 4) to amend its Quarterly Report on Form 10-QSB for the period
ended March 31, 2004 (the Original Filing) filed on May 17, 2004 with the
Securities and Exchange Commission (SEC), as amended by Amendment No. 1 filed
with the SEC on June 14, 2004 (Amendment No. 1), and Amendment No. 2 filed with
the SEC on July 1, 2004, and Amendment No. 3 filed with the SEC on November 23, 2004, in
order to (i) refile Part II  Item 6. Exhibits and Reports on Form 8-K in
its entirety to reflect the new certifications of our Chief Executive Officer and Chief
Financial Officer included with this Amendment No. 4 as Exhibits 31.1 and 31.2,
respectively; and (ii) to include new Exhibits 31.1, 31.2 and 32.1.

This
Amendment does not amend any other information previously filed in the Original Filing as
amended by Amendment No. 1 and Amendment  No. 2. The Original Filing as amended by
Amendment No. 1, Amendment No. 2, and Amendment No. 3 is hereby superseded and amended with respect to the
section and  Exhibits set forth in this Amendment No. 4.

Item 6. Exhibits and
Reports on Form 8-K.

|(a) | Exhibits.
|--- | ---------

|* | Exhibit
16.1  Letter from Forbush and Associates to the U.S. Securities and Exchange
Commission dated  May 14, 2004.
|- | ---------------------------------------------------------------------------------------------------------------------

| | Exhibit 31.1
 Certification of Chief Executive Officer pursuant to Rule 13a-14 under the
Securities Exchange Act of 1934.
| | --------------------------------------------------------------------------------------------------------------------------

| | Exhibit 31.2
 Certification of Chief Financial Officer pursuant to Rule 13a-14 under the
Securities Exchange Act of 1934.
| | --------------------------------------------------------------------------------------------------------------------------

| | Exhibit 32.1
- Certification of CEO and CFO Pursuant to 18 U.S.C. ss. 1350, as Adopted Pursuant to ss.
906 of the Sarbanes-Oxley Act of  2002.
| | ----------------------------------------------------------------------------------------------------------------------------------------------

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|* | Incorporated
by  reference from the Companys Form 10-QSB for the quarter ended March 31, 2004,
as  filed with the SEC on May 17, 2004.
|- | ---------------------------------------------------------------------------------------------------------------------------------------

|(b) | Reports
on Form  8-K. None.
|--- | ---------------------------

SIGNATURES

In
accordance with the requirements of the Securities Exchange Act of 1934, the registrant
caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized.

|Dated:  January 24, 2005 | SULPHCO,
INC.(Registrant)
|------------------------ | -------------------------

| | /s/
Rudolf W. Gunnerman
| | -----------------------

| | By:Its: | Rudolf
W. GunnermanChairman of the Board of Directorsand Chief Executive Officer
| | ------- | --------------------------------------------------------------------------------

| | /s/
Alan L. Austin, Jr.
| | -----------------------

| | By:Its: | Alan
L. Austin, Jr.Vice President of Finance andChief Financial Officer (Principal
Financial and Accounting  Officer)
| | ------- | ---------------------------------------------------------------------------------------------------------------------

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