Patents by Inventor Melanie Croessmann

Melanie Croessmann 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
  • Copolymers as dewaxing additives
    Patent number: 7728093
    Abstract: The invention relates to copolymers which are suitable for producing additives for solvent deparaffination of paraffin-containing mineral oil distillates and which consist of radically polymerized monomers of formulas A and B, wherein the radicals have the meaning cited in the description. The invention also relates to the use of said copolymers for the production of dewaxing additives.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: June 1, 2010
    Assignee: Evonik Rohmax Additives GmbH
    Inventors: Markus Scherer, Michael Mueller, Jean-Luc Herbeaux, Dieter Janssen, Melanie Croessmann
  • 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
  • Copolymers as dewaxing additives
    Publication number: 20050148749
    Abstract: The invention relates to copolymers which are suitable for producing additives for solvent deparaffination of paraffin-containing mineral oil distillates and which consist of radically polymerized monomers of formulas A and B, wherein the radicals have the meaning cited in the description. The invention also relates to the use of said copolymers for the production of dewaxing additives.
    Type: Application
    Filed: February 14, 2003
    Publication date: July 7, 2005
    Applicant: ROHMAX ADDITIVES GMBH
    Inventors: Markus Scherer, Michael Mueller, Jean-Luc Herbeaux, Dieter Janssen, Melanie Croessmann