Patents by Inventor Keith Ogemark

Keith Ogemark 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).

  • Process for manufacture of an allyl ether
    Publication number: 20060116534
    Abstract: A process for production of an allyl and/or methallyl ether of a tri or polyhydric alcohol is disclosed. Said process comprises (i) subjected at least one cyclic formal of a tri or polyhydric alcohol to allylation, (ii) subjecting obtained allyl and/or methallyl ether of said cyclic formal to reaction with at least one alcohol and optionally an intermediate and/or a final purification step. In further aspects the present invention refers to an allyl and/or methallyl ether yielded in said process.
    Type: Application
    Filed: March 18, 2004
    Publication date: June 1, 2006
    Inventors: Jesper Samuelsson, Oleg Pajalic, Mircea Manea, Keith Ogemark
  • Lubricant ester
    Patent number: 6290869
    Abstract: A lubricant ester having enhanced hydrolytic stability is disclosed. The ester is a mono or diester of 2-ethyl-2-butyl-1,3-propanediol or an alkoxylate thereof and at least one carboxylic acid having 5-10 carbon atoms. The invention in a further aspect refers to a refrigeration working fluid comprising said ester and at least one halocarbon refrigerant.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: September 18, 2001
    Assignee: Perstorp AB
    Inventors: Kent Sorensen, Keith Ogemark, Carl-Axel Sjogreen