Patents by Inventor James Patrick Warren

James Patrick Warren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020046562
    Abstract: A heavy duty diesel engine (1) has an exhaust system incorporating a catalyst (5a) to convert NO to NO 2 and a particulate trap (5b) on which soot particles are continuously oxidized, and a portion of the cleaned gases are recirculated through a cooler (7) and an exhaust gas flow valve (8) before being mixed with air and fed to the engine cylinders. Considerable reductions in NOx can be achieved.
    Type: Application
    Filed: April 28, 2000
    Publication date: April 25, 2002
    Inventors: RONNY ALLANSSON, KLAS ANDERS ANDREASSON, NILS MYERS, ARI UUSIMAKI, JAMES PATRICK WARREN