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): July 19, 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 5. - OTHER EVENTS AND REGULATION FD DISCLOSURE


On July 19, 2004, the Registrant issued the following  announcement over the
newswire and posted it on its website (www.sonexresearch.com):


                SONEX RECEIVES $192,932 FOLLOW-ON TASK FROM DARPA


ANNAPOLIS,  MARYLAND,  July 19, 2004 - SONEX  RESEARCH,  INC. (OTC BB: SONX),  a
leader in the field of clean burn combustion  technology,  announced that it has
received a $192,932  follow-on task from the Defense Advanced  Research Projects
Agency (DARPA) to continue  development of a multi-cylinder  "heavy fuel" engine
(HFE) combustion process for potential  Department of Defense (DoD) applications
such as unmanned aerial vehicles (UAVs).

Under the existing contract, Sonex has adapted a lightweight gasoline automotive
engine to an unthrottled,  direct fuel injection combustion process based on the
Sonex  Controlled  Auto-Ignition  (SCAI)  technology  to  run on  JP5,  military
kerosene-based  heavy fuel. The SCAI process is enabled by a proprietary  piston
technology that achieves in-cylinder chemical kinetics at a moderate compression
ratio for auto ignition of the JP5. Sonex adapted the automotive gasoline engine
using a computer aided design and prototyping  fabrication process that involved
subcontractors  and  specialty  suppliers.   The  laboratory  HFE  features  the
proprietary Sonex pistons,  electronically controlled common rail fuel injection
system and extensive instrumentation.

The  contract  was  extended to add a task to:  enhance the  6-cylinder  HFE for
higher power output; achieve boosted HFE combustion  optimization;  perform data
collection-analyses; and provide a technical readiness demonstration. Sonex will
determine the technical  feasibility of turbo-charging  the HFE for higher power
output and advantageous rates of fuel consumption.

This project is sponsored by DARPA as a technology feasibility  demonstration of
a means for  lightweight  piston  engines to comply with a DoD policy  directive
that mandates kerosene-based "heavy" fuel for all engines.  Gasoline engines are
typically 25% to 30% lighter than diesel engines; thus, fully qualified, adapted
gasoline engine designs that could burn low cetane (hard to ignite, diesel type)
heavy fuel would address DoD performance, logistics and safety requirements.


Contact: Jim Rose, Global Equity Consultants,  Inc., Tel:  410-349-1685,  email:
geci@comcast.net,   or  Roger  Posey,  President,  Sonex  Research,  Inc.,  Tel:
410-266-5556,            email:           info@sonex-na.com,            website:
www.sonexresearch.com.


About DARPA

The Defense  Advanced  Research  Projects Agency (DARPA) is the central research
and development organization for the Department of Defense (DoD). It manages and
directs  selected basic and applied  research and development  projects for DoD,
and pursues research and technology where risk and payoff are both very high and
where success may provide dramatic  advances for traditional  military roles and
missions.  More  information  about  DARPA  can  be  found  on the  Internet  at
www.darpa.mil.


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.  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.


July 19, 2004

SONEX RESEARCH, INC.
Registrant


/s/ Andrew A. Pouring
----------------------
Andrew A. Pouring
Chief Executive Officer