EPA Patents Available for Licensing: Vehicles and Fuel Emissions

The links below will take you to the relevant page in the U.S. Patent and Trademark Office’s Patent Application Full Text and Image Database.

Patent #	Patent Title	Issue Date
13/637847 pat. pend.	Methods for Safe Operation of Hydraulic Hybrid Vehicles with Over-Center Pump/Motors	N/A
8,887,554	Raw Proportional Toxic Sampler for Sampling Exhaust	11/18/2014
9,121,395	Method for Assembling a Bent-Axis Pump/Motor	09/01/2015
8,407,999	Efficiency Turbocharged Engine System With Bottoming Cycle, and Method of Operation	04/02/2013
8,397,848	Hydraulic-Electric Regenerative Storage System For Plug-In Hybrid Motor Vehicles	03/19/2013
8,387,385	Efficient By-Pass Valve for Multi-Stage Turbocharging System	03/05/2013
8,356,985	Safe Over-Center Pump/Motor	01/22/2013
8,272,356	Two Mode Dual Crankshaft Engine	09/25/2012
8,104,436	Quasi Free Piston Engine	01/31/2012
8,069,657	Diesel Particulate Filter Regeneration System	12/06/2011
8,061,121	Flex Fuel Internal Combustion Engine System	11/22/2011
8,055,432	Method and System of Transient Control for Homogeneous Charge Compression Ignition (HCCI) Engines	11/08/2011
7,644,585	Multi-Stage Turbo Charging System With Efficient Bypass	01/12/2010
7,464,697	High Pressure Fuel Intensifier System	12/16/2008
7,237,532	Methods of Operation for Controlled Temperature Combustion Engines using Gasoline-Like Fuel, Particularly Multi-cylinder Homogenous Charge Compression Ignition (HCCI) Engines	07/03/2007
7,025,042	Methods of Operation for Controlled Temperature Combustion Engines Using Gasoline-Like Fuel, Particularly Multicylinder Homogenous Charge Compression Ignition (HCCI) Engines	04/11/2006
7,024,858	Multi-Crankshaft, Variable-Displacement Engine	04/11/2006
6,962,090	Heated Stainless Steel Emissions Canister	11/08/2005
6,857,263	Low Emission Diesel Combustion System with Low Charge-Air Oxygen Concentration Levels and High Fuel Injection Pressures	02/22/2005
6,752,105	Piston-In-Piston Variable Compression Ratio Engine	06/22/2004
6,301,888	Low Emission, Diesel-Cycle Engine	10/16/2001
8,381,851	Methods of Operating a Series Hybrid Vehicle	02/26/2013
8,375,982	Hydraulic Circuit and Manifold With Multifunction Valve	02/19/2013
7,681,394	Control Methods for Low Emission Combustion System	03/23/2010

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