content: SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
  
  
                                   FORM 8-K
  
  
                                CURRENT REPORT
                Pursuant to Section 13 or 15(d) of the Securities
                             Exchange Act of 1934
  
  
    Date of Report (Date of earliest event reported): April 16, 2004
  
  
                              SONEX RESEARCH, INC.
                (Exact name of registrant as specified in Charter)
  
  
           Maryland                  0-14465                52-1188993
        (State or other           (Commision file         (IRS employer
        jurisdiction of               number)           identification no.)
         incorporation)
  
  
  
                      23 Hudson Street, Annapolis, MD 21401
                     (Address of principal executive offices)
  
  
                                (410) 266-5556
               (Registrant's telephone number, including area code)
  
  
                                      N/A
           (Former name or former address, if changed since last report)
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  ITEM 9. - REGULATION FD DISCLOSURE
  
  
  On April 16, 2004,  the  Registrant  posted the  following  announcement  on its
  website (www.sonexresearch.com):
  
  
  
                            SONEX UPDATE - APRIL 16, 2004
  
  
  Dear Fellow Shareholders:
  
  This week Sonex Research, Inc. (OTC BB: SONX) filed its December 31, 2003 Annual
  Report on Form  10-KSB  with the SEC.  This  report  provides  a  comprehensive,
  up-to-date discussion of the Company's initiatives and includes complete audited
  financial statements.  The Form 10-KSB will be mailed to shareholders later this
  year along with other  proxy  information  in  connection  with our 2004  Annual
  Meeting of Shareholders. The date for the shareholder meeting will be determined
  in the near future.
  
  The complete  Annual Report on Form 10-KSB as filed with the SEC is available at
  http://www.sec.gov/Archives/edgar/data/723312/000072331204000004/0000723312-04-
  000004-index.htm.  At the bottom of the page,  click on the link  "Document  1 -
  file:  r10ksb03.txt".  This version is in plain text format and does not contain
  most standard document formatting features.  You can request a formatted version
  from Sonex directly, either in electronic format or in hard copy.
  
  As more fully  described  in the Annual  Report on Form  10-KSB,  the Company is
  developing and  implementing an updated business plan under the direction of its
  new  president  Roger D.  Posey,  who  recently  joined the  Company's  Board of
  Directors.  Roger's  primary  focus is to  transition  Sonex from a research and
  development company into a technology and manufacturing  enterprise bringing new
  and unique products to the world marketplace. The Company will keep you informed
  of any new developments as they occur.
  
  In addition,  I am pleased to announce that yesterday Mr. Jim Z.I.  Williams was
  named a  director  of the  Company.  Mr.  Williams  is the  President  and Chief
  Executive  Officer of E. I. Williams Steel Division of Ajax Ontario,  Canada,  a
  company  which  manufactures  quality  low cost - high value  noise  control and
  suppression equipment.  He has twenty years of management leadership experience,
  serves on the Board of Directors of a number of companies,  and is involved with
  many  charitable  activities.  Mr.  Williams holds a B.S. degree in the Sciences
  from the University of Toronto.  Mr. Williams and Roger Posey fill the vacancies
  created by the recent  resignations of Mr. Herbert J. Mitschele,  Jr., a retired
  business  owner who has been a  shareholder  of the  Company  for  approximately
  twenty years, and Mr. George E. Ponticas,  the Company's Chief Financial Officer
  and Secretary.  Both Herb and George had joined the Board on an interim basis in
  February 2004.
  
  Our  management  team will once again look  forward to seeing many of you at our
  2004 Annual Meeting of Shareholders later this year.
  
  
  Sincerely,
  
  
  Andrew A. Pouring, D.Eng.
  Chief Executive Officer
  Sonex Research, Inc.
  
  
  
  
  About Sonex
  
  Sonex  Research,  Inc.,  a leader  in the  field of  combustion  technology,  is
  developing its patented Sonex Combustion  System (SCS)  piston-based  technology
  for in-cylinder  control of ignition and  combustion,  designed to increase fuel
  mileage and reduce  emissions  of internal  combustion  engines.  Sonex plans to
  complete  development,  commercialize  and  market  its  Sonex  Controlled  Auto
  Ignition (SCAI)  combustion  process to the automotive  industry to improve fuel
  efficiency of gasoline powered vehicles in response to forthcoming  increases in
  national vehicle fuel mileage standards.  Additionally,  independent third-party
  testing has confirmed the potential of the SCS application  for  direct-injected
  diesel  engines to reduce  harmful  soot  in-cylinder  without  increasing  fuel
  consumption.  Other SCS  designs are being used to convert  gasoline  engines of
  various sizes to operate on safer, diesel-type "heavy fuels" for use in military
  and commercial applications requiring light weight and safe handling and storage
  of fuel, such as in UAVs (unmanned aerial vehicles).
  
  
  Caution Regarding Forward-Looking Statements
  
  "Forward-looking"  statements  contained  in this  announcement,  as well as all
  publicly disseminated material about the Company, are made pursuant to the "safe
  harbor" provisions of the Private Securities Litigation Act. Such statements are
  based  on  current  expectations,  estimates,  projections  and  assumptions  by
  management  with respect to matters  such as  commercial  acceptance  of the SCS
  technology, the impact of competition,  and the Company's financial condition or
  results of  operations.  Readers  are  cautioned  that such  statements  are not
  guarantees of future  performance and involve risks and uncertainties that could
  cause  actual  results to differ  materially  from those  expressed  in any such
  forward-looking statements.  Additional information regarding the risks faced by
  Sonex is provided in the  Company's  periodic  filings with the  Securities  and
  Exchange Commission under the heading "Risk Factors". Such filings are available
  upon request from the Company or online in the EDGAR database at www.sec.gov.
  
  
                                   ###
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  SIGNATURES
  
  Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
  registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
  undersigned hereunto duly authorized.
  
  
  April 16, 2004
  
  SONEX RESEARCH, INC.
  Registrant
  
  
  /s/ George E. Ponticas
  ----------------------
  George E. Ponticas
  Chief Financial Officer
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text: SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
  
                                   FORM 8-K
  
                                CURRENT REPORT
                Pursuant to Section 13 or 15(d) of the Securities
                             Exchange Act of 1934
  
    Date of Report (Date of earliest event reported): April 16, 2004
  
                              SONEX RESEARCH, INC.
                (Exact name of registrant as specified in Charter)
  
           Maryland                  0-14465                52-1188993
        (State or other           (Commision file         (IRS employer
        jurisdiction of               number)           identification no.)
         incorporation)
  
                      23 Hudson Street, Annapolis, MD 21401
                     (Address of principal executive offices)
  
                                (410) 266-5556
               (Registrant's telephone number, including area code)
  
                                      N/A
           (Former name or former address, if changed since last report)
  
  ITEM 9. - REGULATION FD DISCLOSURE
  
  On April 16, 2004,  the  Registrant  posted the  following  announcement  on its
  website (www.sonexresearch.com):
  
                            SONEX UPDATE - APRIL 16, 2004
  
  Dear Fellow Shareholders:
  
  This week Sonex Research, Inc. (OTC BB: SONX) filed its December 31, 2003 Annual
  Report on Form  10-KSB  with the SEC.  This  report  provides  a  comprehensive,
  up-to-date discussion of the Company's initiatives and includes complete audited
  financial statements.  The Form 10-KSB will be mailed to shareholders later this
  year along with other  proxy  information  in  connection  with our 2004  Annual
  Meeting of Shareholders. The date for the shareholder meeting will be determined
  in the near future.
  
  The complete  Annual Report on Form 10-KSB as filed with the SEC is available at
  http://www.sec.gov/Archives/edgar/data/723312/000072331204000004/0000723312-04-
  000004-index.htm.  At the bottom of the page,  click on the link  "Document  1 -
  file:  r10ksb03.txt".  This version is in plain text format and does not contain
  most standard document formatting features.  You can request a formatted version
  from Sonex directly, either in electronic format or in hard copy.
  
  As more fully  described  in the Annual  Report on Form  10-KSB,  the Company is
  developing and  implementing an updated business plan under the direction of its
  new  president  Roger D.  Posey,  who  recently  joined the  Company's  Board of
  Directors.  Roger's  primary  focus is to  transition  Sonex from a research and
  development company into a technology and manufacturing  enterprise bringing new
  and unique products to the world marketplace. The Company will keep you informed
  of any new developments as they occur.
  
  In addition,  I am pleased to announce that yesterday Mr. Jim Z.I.  Williams was
  named a  director  of the  Company.  Mr.  Williams  is the  President  and Chief
  Executive  Officer of E. I. Williams Steel Division of Ajax Ontario,  Canada,  a
  company  which  manufactures  quality  low cost - high value  noise  control and
  suppression equipment.  He has twenty years of management leadership experience,
  serves on the Board of Directors of a number of companies,  and is involved with
  many  charitable  activities.  Mr.  Williams holds a B.S. degree in the Sciences
  from the University of Toronto.  Mr. Williams and Roger Posey fill the vacancies
  created by the recent  resignations of Mr. Herbert J. Mitschele,  Jr., a retired
  business  owner who has been a  shareholder  of the  Company  for  approximately
  twenty years, and Mr. George E. Ponticas,  the Company's Chief Financial Officer
  and Secretary.  Both Herb and George had joined the Board on an interim basis in
  February 2004.
  
  Our  management  team will once again look  forward to seeing many of you at our
  2004 Annual Meeting of Shareholders later this year.
  
  Sincerely,
  
  Andrew A. Pouring, D.Eng.
  Chief Executive Officer
  Sonex Research, Inc.
  
  About Sonex
  
  Sonex  Research,  Inc.,  a leader  in the  field of  combustion  technology,  is
  developing its patented Sonex Combustion  System (SCS)  piston-based  technology
  for in-cylinder  control of ignition and  combustion,  designed to increase fuel
  mileage and reduce  emissions  of internal  combustion  engines.  Sonex plans to
  complete  development,  commercialize  and  market  its  Sonex  Controlled  Auto
  Ignition (SCAI)  combustion  process to the automotive  industry to improve fuel
  efficiency of gasoline powered vehicles in response to forthcoming  increases in
  national vehicle fuel mileage standards.  Additionally,  independent third-party
  testing has confirmed the potential of the SCS application  for  direct-injected
  diesel  engines to reduce  harmful  soot  in-cylinder  without  increasing  fuel
  consumption.  Other SCS  designs are being used to convert  gasoline  engines of
  various sizes to operate on safer, diesel-type "heavy fuels" for use in military
  and commercial applications requiring light weight and safe handling and storage
  of fuel, such as in UAVs (unmanned aerial vehicles).
  
  Caution Regarding Forward-Looking Statements
  
  "Forward-looking"  statements  contained  in this  announcement,  as well as all
  publicly disseminated material about the Company, are made pursuant to the "safe
  harbor" provisions of the Private Securities Litigation Act. Such statements are
  based  on  current  expectations,  estimates,  projections  and  assumptions  by
  management  with respect to matters  such as  commercial  acceptance  of the SCS
  technology, the impact of competition,  and the Company's financial condition or
  results of  operations.  Readers  are  cautioned  that such  statements  are not
  guarantees of future  performance and involve risks and uncertainties that could
  cause  actual  results to differ  materially  from those  expressed  in any such
  forward-looking statements.  Additional information regarding the risks faced by
  Sonex is provided in the  Company's  periodic  filings with the  Securities  and
  Exchange Commission under the heading "Risk Factors". Such filings are available
  upon request from the Company or online in the EDGAR database at www.sec.gov.
  
                                   ###
  
  SIGNATURES
  
  Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
  registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
  undersigned hereunto duly authorized.
  
  April 16, 2004
  
  SONEX RESEARCH, INC.
  Registrant
  
  /s/ George E. Ponticas
  ----------------------
  George E. Ponticas
  Chief Financial Officer