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                                                                  EXHIBIT 10.15


                                LICENSE AGREEMENT

         THIS AGREEMENT is made effective as of the last date of execution set
forth below and is between Global Energy & Environmental Research Inc.,
hereinafter referred to as LICENSEE, a. corporation of the State of Florida and
having offices at 15445 North Nebraska Avenue; Lutz, Florida 33549, and Noel
Davis, hereinafter referred to as LICENSOR, a person residing at 1360 Ranier
Lane North, Plymouth, Minnesota 55447.

                                    RECITALS

         WHEREAS, LICENSOR possesses certain information and knowledge relating
to a LIGHT ENERGY SHUTTER SYSTEM, invented by Noel Davis and comprising U. S.
Patent No. 6,000,170, issued December 14, 1999;

         WHEREAS, LICENSOR desires that such information and knowledge be
developed and utilized in the public interest and is willing to enter into a
license agreement for those purposes;

         WHEREAS, LICENSEE desires to obtain a license to make, use and sell
products utilizing such information and knowledge.

         NOW, THEREFORE, in consideration of the representations above and the
mutual covenants and promises hereinafter set forth, the parties agree as
follows:


                             ARTICLE I - DEFINITIONS

A.       "Technology" shall mean any knowledge, information, know-how and
         devices, whether patentable or not, in the possession of the LICENSOR
         and relating to LIGHT ENERGY SHUTTER SYSTEM and comprising U. S. Patent
         No. 6,000,170, issued December 14, 1999.

B.       "Improvements" shall mean any development or improvement of the
         Technology, whether patentable or not, made by the LICENSOR or LICENSEE
         or jointly and which, if unlicensed, would infringe one or more claims
         of U. S. Patent No. 6,000,170, issued December 14, 1999. However,
         "Improvements" shall not include any improvement or development made by
         the LICENSOR which is more than three years from the date of the
         signing hereof.

C.       "Subject Patent Application(s)" shall mean any patent application in
         the United States or in a foreign country that covers the Technology
         and/or Improvements made solely by the LICENSOR or jointly by the
         LICENSOR and LICENSEE.

D.       "Subject Patent(s)" shall mean any patent that issues on a Subject
         Patent Application.


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E.       "Licensed Product(s)" shall mean any product which incorporates the
         Technology or Improvements or which is made by a process or machine
         which incorporates the Technology.

F.       "Net Sales" shall mean the gross amount invoiced for sales or leases of
         Licensed Product(s) by LICENSEE, its Affiliates or its sublicensees
         less (i) all trade, quantity, and cash discounts actually allowed, (ii)
         all credits and allowances actually granted on account of rejection,
         returns, billing errors, or retroactive price reductions, (iii) duties,
         and (iv) excise, sale and use taxes, and equivalent taxes.

G.       "Affiliate(s)" shall mean any present or future domestic or foreign
         corporation which shall be, at the pertinent time, owned or controlled,
         directly or indirectly by LICENSEE.


                 ARTICLE II - INVENTIONS AND PATENT APPLICATIONS


A.       Title in the Technology and Improvements made solely by the LICENSOR
         shall rest solely and exclusively with the LICENSOR, subject to the
         license grant of Article III. Title in Improvements made jointly by the
         LICENSOR and LICENSEE shall be held jointly by the LICENSOR and
         LICENSEE. Title in Improvements made solely by LICENSEE shall rest
         solely and exclusively with LICENSEE.

B.       Each party hereto shall promptly disclose to the other party any
         Improvements conceived or reduced to practice by the first party.

C.       LICENSEE shall reimburse the LICENSOR for all future maintenance fees,
         filing fees, and registration fees pertaining to U .S. Patent No.
         6,000,170, issued December 14, 1999. All such fees will be billed by
         LICENSOR to LICENSEE at the end of each calendar quarter. Accrued to
         date fees are the responsibility of LICENSOR. In the future, the
         LICENSOR will invoice LICENSEE for such expenses at the end of each
         calendar quarter. With respect to Improvements, all Subject Patent
         Application(s) will be filed jointly in the names of LICENSOR and
         LICENSEE. LICENSEE shall be responsible for such filings and
         prosecution of the patent applications, both U. S. and foreign, and
         bear all costs related to the Subject Patent Application(s) and Subject
         Patent(s) issuing therefrom.

D.       In the event LICENSEE does not desire to have Subject Patent
         App1ication(s) filed or prosecuted, or does not desire to have Subject
         Patent(s) maintained, LICENSEE shall promptly notify the LICENSOR.
         Subsequent to this notice, such application(s), patents(s) issuing on
         such application(s) and such patent(s) as LICENSEE does not desire to
         be maintained shall no longer be considered Subject Patent
         Application(s) or Subject Patent(s). The LICENSOR, upon such notice,
         may file or prosecute such patent application(s) or maintain such
         patent(s) at its sole option and expense.


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E.       LICENSOR and LICENSEE agree to cooperate in connection with the filing
         and prosecution of Subject Patent Application(s) relating to
         Improvements.

                ARTICLE III - LICENSE GRANT AND COMMERCIAL EFFORT


A.       Subject to the terms and conditions herein, the LICENSOR hereby grants
         and LICENSEE hereby accepts an exclusive worldwide license, with a
         right to grant sublicenses, to make, use, and sell Licensed Product(s

B.       Notwithstanding this license grant, the LICENSOR retains a nonexclusive
         and nontransferable right to use for research purposes only the
         Technology or Improvements made solely by the LICENSOR or jointly by
         the LICENSOR and LICENSEE; this includes the right to make and use
         devices incorporating the Technology or Improvements for those
         purposes. LICENSEE hereby grants and the LICENSOR hereby accepts a
         nonexclusive, nontransferable and irrevocable right to use for research
         purposes any Improvements made solely by LICENSEE.

C.       The exclusive license granted herein shall terminate upon the
         termination of this Agreement in accordance with Article VI.

D.       LICENSEE shall have the right to grant sublicenses to others with
         respect to any rights conferred upon LICENSEE under this Agreement.
         Provided, however, that any such sublicense shall be subject in all
         applicable respects to the provisions contained in this Agreement, and
         further provided that LICENSEE shall give the LICENSOR an opportunity
         to review and comment on any sublicense prior to its execution. It is
         the intent of this Agreement that the LICENSEE itself be the instrument
         to develop and market licensed product(s). Accordingly, LICENSEE may
         not fulfill its obligations to exercise its best efforts as provided in
         Article III, paragraph E below by sublicensing essentially all of its
         obligations to develop and market licensed products(s) to another
         entity.

E.       LICENSEE shall use its best efforts to effect commercial sales of
         Licensed Product(s) as soon as practicable and to maximize these sales,
         consistent with sound and reasonable business practices and judgment.
         Best efforts shall be deemed to have been met if LICENSEE sells three
         Licensed Products in the first year of the License, ten Licensed
         Products in the second year of the License, and twenty Licensed
         Products in the each year of the License thereafter. LICENSEE agrees
         that Licensed Products for distribution in the United States will be
         manufactured substantially in the United States. LICENSEE shall provide
         the LICENSOR with written plans for effecting commercialization and
         reports of LICENSEE'S efforts to effect commercialization. LICENSEE
         shall provide these reports semiannually.


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F.       LICENSEE shall sell Licensed Product(s) at pricing that will provide
         the best opportunity for commercialization of the Product(s) and
         refrain from making any extravagant claims in its advertising or
         otherwise.

G.       LICENSEE shall not use the names of the LICENSOR nor of any LICENSOR
         employees in any manner without prior written approval from the
         LICENSOR.

H.       LICENSEE, its Affiliates, and its sublicensees shall alone have the
         obligation to ensure that any Licensed Product they sell is not
         defective.

                   ARTICLE IV - ROYALTIES, REPORTS AND RECORDS

A.       For the license granted hereunder, LICENSEE shall pay or cause to be
         paid to the LICENSOR a royalty of 8% (eight percent) on Net Sales of
         Licensed Product(s). LICENSEE shall be responsible to the LICENSOR for
         the payment of running royalties due with respect to sales made by
         sublicensees (including Affiliates) as though they were sales by
         LICENSEE. LICENSEE shall pay 50% (fifty percent), less attributable
         costs, of all sublicensing lump sum payments, initial payments, minimum
         royalties and like sums to LICENSOR.

B.       Royalties shall be payable only once with respect to the same unit of a
         Licensed Product regardless of the number of patented or nonpatented
         portions of the Technology or Improvements incorporated in such
         product.

C.       Royalty payments as hereinabove required to be made by LICENSEE to the
         LICENSOR shall be made in United States dollars within sixty (60) days
         following each calendar quarter. Any currency translations that are
         necessary to calculate payments shall be made at the exchange rate used
         by LICENSEE for financial accounting purposes in accordance with
         generally accepted accounting principles. Each such payment shall
         include the royalties which shall have accrued during the calendar
         quarter immediately preceding and shall be accompanied by a report
         setting forth separately the Net Sales of Licensed Products(s) sold
         during that quarter. Royalty checks shall be made payable to (LICENSOR)
         and mailed to the address specified in Article X.

D.       LICENSEE, its Affiliates and its sublicensees shall keep and maintain
         records of sales of Licensed Product(s) that are subject to royalty
         payments hereunder. Such records shall be open to inspection at
         reasonable times by a certified public accountant chosen by the
         LICENSOR and acceptable to the LICENSEE. Such inspection shall be made
         at the LICENSOR'S expense. The records required by this paragraph shall
         be maintained and available for inspection for a period of five (5)
         years following the calendar quarter to which they pertain.

E.       Annually, commencing on the first anniversary of the execution hereof
         and continuing on each anniversary thereafter, LICENSEE shall pay to
         LICENSOR a minimum royalty


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         of $10,000.00. An annual minimum royalty may be offset against
         royalties due on Net Sales of Licensed Products owed in the previous
         calendar year.

                            ARTICLE V - INFRINGEMENT

A.       In the event that the LICENSOR or LICENSEE determines that a third
         party is making, using or selling a product that may infringe a Subject
         Patent, it will promptly notify the other party in writing. LICENSEE
         may, at it sole option, bring suit against such alleged infringer. In
         the event LICENSEE decides to bring suit, it shall give prompt written
         notice to the LICENSOR of that fact. All recoveries in such suit shall
         inure to the benefit of LICENSEE, except that the LICENSOR shall have
         the right to elect to pay up to fifty percent (50%) of the litigation
         costs and receive a percentage of any recovery equal to the percentage
         of litigation costs paid. The LICENSOR must make such election within
         thirty (30) days of its receipt of notice that LICENSEE has decided to
         bring suit. The LICENSOR shall also have the right to choose to be
         represented by separate counsel in any such suit. If LICENSEE elects
         not to bring a suit against the alleged infringer, it shall promptly
         notify the LICENSOR of that fact and the LICENSOR shall have the right
         to commence such action at its own cost and expense, in which case any
         recoveries shall inure to the benefit of the LICENSOR.

B.       In the event that LICENSEE, an Affiliate or a sublicensee is sued by a
         third party charging patent infringement for the manufacture, use or
         sale of a Licensed Product, LICENSEE shall promptly notify the
         LICENSOR. LICENSEE shall be entitled to withhold up to fifty percent
         (50%) of the royalties otherwise payable to the LICENSOR, and use that
         withheld royalty to reimburse itself for legal defense costs incurred
         in such infringement suit, provided, however, that the infringement
         suit is based on a particular feature of the Licensed Product that is
         covered by a Subject Patent. If LICENSEE avails itself of the
         provisions of this paragraph, LICENSEE agrees to supply the LICENSOR
         with proof of the legal costs incurred. LICENSOR's liability for such
         infringement shall be limited to 50% (fifty percent) of all royalties
         paid by LICENSEE to LICENSOR up to the date of judgment in such
         infringement suit.

C.       If LICENSEE, any of its Affiliates or any of its sublicensees is
         required to pay a royalty to other than the LICENSOR as a result of a
         final judgment or settlement in order to make and/or sell a Licensed
         Product then in that event, the royalty payable to the LICENSOR shall
         be reduced by the amount of royalty that LICENSEE, the Affiliate or the
         sublicensee shall be required to pay to other than the LICENSOR, but in
         no event shall the royalty payable to the LICENSOR be reduced by more
         than fifty percent (50%) from the royalty rate specified in Article IV.
         If LICENSEE avails itself of the provisions of this paragraph, LICENSEE
         agrees to provide the LICENSOR with proof of such royalties paid to the
         third party.


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D.       In the event that any claim(s) of a Subject Patent are finally
         determined by a court to be invalid or unenforceable, the parties
         hereto agree to negotiate a reduced royalty provided for in Article IV,
         clause A in view of such determination.

                        ARTICLE VI - TERM AND TERMINATION

A.       This Agreement's term shall end with the expiration of the Subject
         Patent last to expire or 20 (twenty) years, whichever occurs first.

B.       The LICENSOR shall have the right to terminate this Agreement upon
         sixty (60) days written notice by certified mail to LICENSEE under the
         following circumstances:

                  (1)      if royalties due the LICENSOR are unpaid;

                  (2)      if there is a material breach or default of this
                           Agreement by LICENSEE;

                  (3)      if LICENSEE fails to use its best efforts to effect
                           commercial sales of Licensed Product(s) in accordance
                           with Article III, paragraph E. At its sole option,
                           LICENSOR may offer LICENSEE a nonexclusive license in
                           this circumstance; and

                  (4)      an assignment of this Agreement by LICENSEE to which
                           the LICENSOR has not given its consent, which consent
                           will not be unreasonably withheld by LICENSOR.

         If LICENSEE does not cure the above specified conditions within sixty
         (60) days of receipt of notice termination, such termination shall
         become effective.

C.       LICENSEE may terminate the license granted hereunder at any time upon
         sixty (60) days notice by certified mail to the LICENSOR.

D.       Upon termination of this Agreement for any reason, including the end of
         term as specified above, nothing herein shall be construed to release
         either party from any obligation which matured prior to the effective
         date of termination. LICENSEE, its Affiliates or its sublicensees may
         after the effective date of such termination sell all Licensed
         Product(s) in stock and complete construction of all Licensed
         Product(s) in the process of manufacture at the time of termination and
         sell the same, provided that LICENSEE pay to the LICENSOR royalties on
         such Licensed Product(s) as specified in this agreement.

                     ARTICLE VII - CONFIDENTIAL INFORMATION

                Neither party shall disclose confidential information of the
         other party to a third party. For this purpose, information regarding
         or comprising Technology or Improvements that has not passed into the
         public domain shall be considered confidential information.


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                            ARTICLE VIII - WARRANTIES

           The LICENSOR represents and warrants that;

         a.       the LICENSOR has full right, power and authority to enter
         into this Agreement and to grant all of the right, title, and interest
         in the Technology and Improvements herein granted;

         b.       the LICENSOR has not previously assigned, transferred,
         conveyed, or otherwise encumbered such right, title, and interest;

         c.       the LICENSOR is the sole and exclusive owner of the Technology
         and Improvements, all of which is free and clear of any liens, charges,
         and encumbrances, and no other person or entity has or shall have any
         claim of ownership with respect to the Technology and Improvements;

         d.       the Technology and Improvements do not infringe any rights
         owned or possessed by any third party, and

         e.       there are no claims, judgments or settlements to be paid by
         the LICENSOR or pending claims or litigation relating to the Technology
         and Improvements.

                   ARTICLE IX - INDEMNIFICATION AND INSURANCE

A.       LICENSEE agrees to indemnify the LICENSOR and hold the LICENSOR
         harmless against all liabilities, demands, damages, expenses, or losses
         arising (i) from the manufacture, use, or sale of a Licensed Product by
         LICENSEE, an Affiliate or a sublicensee of LICENSEE, (ii) from a third
         party's use of a Licensed Product purchased or leased from LICENSEE, an
         Affiliate or a sublicensee of LICENSEE, or (iii) from a third party's
         manufacture of a Licensed Product at the request of LICENSEE.

B.       LICENSEE agrees to maintain liability insurance to insure against any
         of the above liabilities. LICENSEE shall provide LICENSOR with
         certification of such insurance.

C.       The provisions of this Article shall survive termination of this
         Agreement for the duration of any stated or published warranties.

                      ARTICLE X - MISCELLANEOUS PROVISIONS

A.       The rights and licenses granted by LICENSOR in this agreement are
         personal to LICENSEE and may not be assigned or otherwise transferred
         without the written consent of LICENSOR. Any attempted assignment or
         transfer without such consent shall be void and shall automatically
         terminate all rights of the LICENSEE under this agreement.


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B.       LICENSEE hereby assures the LICENSOR that LICENSEE will comply with all
         U. S. export controls as set forth in the Export Administration
         Regulations, 15 C.F.R.ss.770 et seq.

C.       This Agreement shall be governed by the Laws of the State of Minnesota.

D.       For purposes of mailings of notices, payments, or other communications,
         the addresses of the parties are given below.

                In the case of the LICENSOR:

                Noel Davis
                1360 Ranier Lane North
                Plymouth, Minnesota 55447

                In the case of LICENSEE:

                Global Energy & Environmental Research, Inc.
                15445 North Nebraska Avenue
                Lutz, Florida 33549

E.       No term or provision of this Agreement shall be waived and no breach
         excused, unless such waiver or consent shall be in writing and signed
         by the party claimed to have waived or consented. No waiver of a breach
         shall be deemed to be a waiver of a different or subsequent breach.

F.       This Agreement may not be modified, changed or terminated orally. No
         change, modification, addition or amendment shall be valid unless in
         writing and signed by the parties hereto.

G.       This Agreement constitutes and contains the entire Agreement of the
         parties respecting the subject matter hereof and supersedes any and all
         prior negotiations, correspondence, understanding, and agreements,
         whether written or oral, between the parties respecting the subject
         matter hereof.

         In WITNESS WHEREOF, the LICENSOR and LICENSEE have caused this
Agreement to be executed by their duly authorized officers on the dates
indicated.

           Global Energy & Environmental Research, Inc.       Noel Davis

           By   /s/ Richard Wiles                        By /s/ Noel Davis
              ---------------------------------------       --------------------
           Title  President                              Title  Licensor
                -------------------------------------         ------------------
           Date      5/21/00                             Date 5/21/00
                -------------------------------------        -------------------


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