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Neah Power Receives Additional U.S. Patent for Silicon-Based Electrodes, Tenth Patent Reinforces Company's Leading Position in Fuel Cells

April 10, 2007

SEATTLE—(BUSINESS WIRE)—Neah Power Systems, Inc. (OTCBB: NPWS – News), the leader in development of silicon based micro fuel cells to power lap top computers and portable electronic devices, announced today it was issued an additional U.S. patent, U.S. Patent No. 7,198,864 titled “Silicon-Based Fuel Cell Electrode Structures.”

This latest patent continues to broaden the Intellectual Property coverage that Neah Power has established in the area of silicon-based electrodes for use in fuel cells and further expands Neah’s Intellectual Property for its core porous-silicon electrode architecture. This is Neah Power’s eighth patent related to porous silicon electrode architecture, showing that Neah is taking a leading position in the development of a unique fuel cell system design based on a silicon platform, and also in the use of porous silicon electrode structures for a variety of electrochemical devices. A key aspect of this latest patent is it expands coverage to electrode designs for any electrochemical application, such as battery electrodes, that may choose to shift from conventional designs and materials to a silicon-based platform.

The innovation of a silicon-based electrode could conceivably revolutionize micro fuel cell design, and also change the way people power portable electronic devices and numerous other applications dependant on electrode design.

Dan Rosen, Ph.D., Chairman of Neah Power Systems, commented on the patent grant, “The claims covered by this patent demonstrate Neah Power’s expertise in designing a porous silicon-based fuel cell. The true strength of this patent grant will be that is the patent has one of the broadest potential scopes within the fuel cell industry, and will significantly enhance our competitive advantage in silicon-based fuel cell research and design.” The Company anticipates this fuel cell design utilizing porous silicon electrodes will overcome many limitations of traditional PEM-based fuel cell by enabling a much larger reaction surface area, enabling high power in a small form-factor.

The Company filed its first patent application in November 1999, and has continually filed patents covering many of the components and systems involved in its fuel cell design since then. The Company’s first two foundational patents, both entitled “Fuel Cells Having Silicon Substrates and/or Sol-Gel Derived Support Structures” were awarded in November 2003 and February 2005, respectively. Subsequently, Neah Power now owns a total of ten patents, with additional pending patent applications filed. Prototypes of the Company’s patented porous silicon-based fuel are currently being developed, and if successful, have the potential to increase the operating time of portable electronic devices multiple times beyond that of conventional batteries.

About Neah Power Systems

Neah Power Systems is a micro fuel cell development company using a patented, silicon-based design to provide long-lasting, efficient and safe power solutions for portable electronic devices, including notebook PCs and other power-hungry computer, entertainment, and communications products. As an emerging leader in fuel cell technology and design, Neah Power Systems believes that its products will allow users to extend the operating time of their devices multiple times beyond that of conventional batteries. Key investors include Alta Partners, Frazier Technology Ventures, Castile Ventures, WestAM and Intel Capital. Neah Power Systems is headquartered just outside of Seattle in Bothell, Washington. Further company information can be found at our Website www.neahpower.com and in the reports that we file with the Securities and Exchange Commission, which are accessible at www.sec.gov.

Statements in this press release that are not statements of historical or current fact constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve known and unknown risks, uncertainties, and other unknown factors that could cause the actual results of the Company to be materially different from the historical results or from any future results expressed or implied by such forward-looking statements. In addition to statements which explicitly describe such risks and uncertainties, readers are urged to consider statements labeled with the terms “believes,” “belief,” “expects”, “intends”, “anticipates”, “will”, or “plans” to be uncertain and forward-looking. The forward-looking statements contained herein are also subject generally to other risks and uncertainties that are described from time to time in the Company’’s reports and registration statements filed with the Securities and Exchange Commission.

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