RNS Number:5064C
Clean Air Power Limited
20 August 2007



For immediate release                                            20 August 2007



          CLEAN AIR POWER ANNOUNCES SIGNIFICANT EUROPEAN PATENT GRANT


Clean Air Power, the developer of Dual-FuelTM combustion technology that enables
heavy-duty diesel engines to run on a combination of both diesel and natural
gas, has recently been granted a significant European patent that covers the
future development of Dual-FuelTM technology.


The European patent "Dual Fuel Engine Having Multiple Dedicated Controllers
Connected by a Broadband Communications Link" was granted under Patent No. EP
1,485,599.


This European patent applies to a dual-fuel engine control system comprising
of at least two controllers communicating within a Controlled Area Network
(CAN). The CAN is the state-of-the-art "computer network" that enables one
electronic control unit (ECU) to speak with another ECU, including any
controller in the vehicle that is capable of communication within the CAN.
Currently, all vehicle system communication is managed by CAN technology.


By patenting the use of the CAN communication protocol for dual-fuel
applications, Clean Air Power has a competitive advantage and has protected its
future products against competitive systems. The use of the CAN gives Clean Air
Power systems the benefits of the industry's standard communication protocol and
delivers the optimum technical approach for system integration.


Clean Air Power continues to deliver on its strategy to develop and patent
significant elements of Dual-FuelTM to ensure future protection of its
technology to deliver an efficient, cleaner and lower cost alternative to
conventional diesel fuel.


For further details please contact:

Clean Air Power

John Pettitt, Chief Executive                    Tel: +44 (0) 1494 527110
Peter Rowse, Finance Director


Buchanan Communications

Charles Ryland/Ben Willey                        Tel: +44 (0)20 7466 5000


Canaccord Adams Ltd

Robert Finlay/Erin Needra                        Tel: +44 (0)20 7050 6500






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