Patents by Inventor Robert Cybert

Robert Cybert 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).

  • Oil composition for lubricating an EGR equipped diesel engine and an EGR equipped diesel engine comprising same
    Patent number: 8012919
    Abstract: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR?, wherein R? is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: September 6, 2011
    Assignee: Evonik Rohmax Additives GmbH
    Inventors: Bernard Kinker, Matthias Fischer, Martin Bollinger, Robert Cybert, Ernst Bielmeier, David Cooper, Angelika Fischer, Melanie Croessmann
  • COMPOSITION HAVING IMPROVED FILTERABILITY
    Publication number: 20110192076
    Abstract: The present invention describes a fuel oil composition comprising at least one biodiesel oil and at least one additive for improving the filterability.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 11, 2011
    Applicant: EVONIK ROHMAX ADDITIVES GMBH
    Inventors: Brian HESS, Robert Cybert, Marie Malitsky, Frank-Olaf Maehling, Rene Koschabek, Ronny Sondjaja
  • OIL COMPOSITION FOR LUBRICATING AN EGR EQUIPPED DIESEL ENGINE AND AN EGR EQUIPPED DIESEL ENGINE COMPRISING SAME
    Publication number: 20090270287
    Abstract: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR?, wherein R? is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt.
    Type: Application
    Filed: June 29, 2009
    Publication date: October 29, 2009
    Applicant: ROHMAX ADDITIVES GMBH
    Inventors: Bernard KINKER, Matthias Fischer, Martin Bollinger, Robert Cybert, Ernst Bielmeier, David Cooper, Angelika Fischer, Melanie Croessmann
  • Oil composition for lubricating an EGR equipped diesel engine and an EGR equipped diesel engine comprising same
    Patent number: 7560420
    Abstract: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: July 14, 2009
    Assignee: RohMax Additives GmbH
    Inventors: Bernard Kinker, Matthias Fischer, Martin Bollinger, Robert Cybert, Ernst Bielmeier, David Cooper, Angelika Fischer, Melanie Croessmann
  • Oil composition for lubricating an EGR equipped diesel engine and an EGR equipped diesel engine comprising same
    Publication number: 20060142168
    Abstract: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR?, wherein R? is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 29, 2006
    Applicant: ROHMAX ADDITIVES GMBH
    Inventors: Bernard Kinker, Matthias Fischer, Martin Bollinger, Robert Cybert, Ernst Bielmeier, David Cooper, Angelika Fischer, Melanie Croessmann