Patents by Inventor David Larem

David Larem 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).

  • Sulphur-bridged compounds, use thereof and process for production thereof
    Patent number: 10000718
    Abstract: The present invention relates to novel sulphur-bridged compounds, in which within the molecule there is at least one fatty acid bonded by way of at least one sulphur bridge to at least one polyalkylene glycol ester, the reaction product of a fatty acid with a polyalkylene glycol, and these have from 8 to 29% by weight sulphur content, to use of these as sulphur carrier and lubricant additive and to production of the said compounds.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: June 19, 2018
    Assignee: LANXESS Deutschland GmbH
    Inventors: David Larem, Sandra Horstmann, Thomas Rossrucker, Markus Kuilder, Michael Koenig
  • Lubricity enhancing additives, a method for producing the same and use thereof
    Patent number: 9512381
    Abstract: The invention relates to novel lubricity enhancing additives, to a method for producing the same, and to the use thereof.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 6, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: David Larem, Sandra Horstmann, Steffen Sandhöfner
  • NOVEL SULPHUR-BRIDGED COMPPOUNDS, USE THEREOF AND PROCESS FOR PRODUCTION THEREOF
    Publication number: 20160264903
    Abstract: The present invention relates to novel sulphur-bridged compounds, in which within the molecule there is at least one fatty acid bonded by way of at least one sulphur bridge to at least one polyalkylene glycol ester, the reaction product of a fatty acid with a polyalkylene glycol, and these have from 8 to 29% by weight sulphur content, to use of these as sulphur carrier and lubricant additive and to production of the said compounds.
    Type: Application
    Filed: April 16, 2014
    Publication date: September 15, 2016
    Inventors: David LAREM, Sandra HORSTMANN, Thomas ROSSRUCKER, Markus KUILDER, Michael KOENIG
  • Anticorrosion additives for manufacturing processes, a process for preparation thereof and use thereof
    Patent number: 9121103
    Abstract: The present invention relates to novel anticorrosion additives for manufacturing processes, comprising at least one triazole and the reaction product of at least one alkylene glycol and at least one carboxylic anhydride, to a process for preparation thereof and to the use thereof for corrosion protection for aluminum and/or aluminum alloys.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 1, 2015
    Assignee: Rhein Chemie Rheinau Gmbh
    Inventors: Sandra Leimenstoll, Anke Blaul, Reinhard Stier, Isabell Lange, David Larem
  • NOVEL SULPHUR-BRIDGED COMPOUNDS, USE THEREOF AND PROCESS FOR PRODUCTION THEREOF
    Publication number: 20140323373
    Abstract: The present invention relates to novel sulphur-bridged compounds, in which within the molecule there is at least one fatty acid bonded by way of at least one sulphur bridge to at least one polyalkylene glycol ester, the reaction product of a fatty acid with a polyalkylene glycol, and these have from 8 to 29% by weight sulphur content, to use of these as sulphur carrier and lubricant additive and to production of the said compounds.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 30, 2014
    Applicant: Rhein Chemie Rheinau GmbH
    Inventors: David LAREM, Sandra HORSTMANN, Thomas ROSSRUCKER, Markus KUILDER, Michael KOENIG
  • Novel Lubricity Enhancing Additives, a Method for Producing the Same and use Thereof
    Publication number: 20120245066
    Abstract: The invention relates to novel lubricity enhancing additives, to a method for producing the same, and to the use thereof.
    Type: Application
    Filed: May 3, 2010
    Publication date: September 27, 2012
    Applicant: RHEIN CHEMIE RHEINAU GMBH
    Inventors: David Larem, Sandra Horstmann, Steffen Sandhöfner
  • Anticorrosion additives for manufacturing processes, a process for preparation thereof and use thereof
    Patent number: 8153028
    Abstract: The present invention relates to novel anticorrosion additives for manufacturing processes, comprising at least one triazole and the reaction product of at least one alkylene glycol and at least one carboxylic anhydride, to a process for preparation thereof and to the use thereof for corrosion protection for aluminum and/or aluminum alloys.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 10, 2012
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Sandra Leimenstoll, Anke Blaul, Reinhard Stier, Isabell Lange, David Larem
  • Anticorrosion additives for manufacturing processes, a process for preparation thereof and use thereof
    Publication number: 20120074358
    Abstract: The present invention relates to novel anticorrosion additives for manufacturing processes, comprising at least one triazole and the reaction product of at least one alkylene glycol and at least one carboxylic anhydride, to a process for preparation thereof and to the use thereof for corrosion protection for aluminium and/or aluminium alloys.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Applicant: RHEIN CHEMIE RHEINAU GMBH
    Inventors: Sandra Leimenstoll, Anke Blaul, Reinhard Stier, Isabell Lange, David Larem
  • LUBRICANT ADDITIVES FOR IMPROVING THE TRIBOLOGICAL PROPERTIES, NOVEL LUBRICANTS, PROCESS FOR THE PREPARATION THEREOF AND THE USE THEREOF
    Publication number: 20110118156
    Abstract: The present invention relates to novel lubricant additives for improving the tribological properties, novel lubricants containing these additives, processes for the preparation thereof and the use thereof.
    Type: Application
    Filed: October 6, 2010
    Publication date: May 19, 2011
    Applicant: RHEIN CHEMIE RHEINAU GMBH
    Inventors: Thomas Rühle, Michael König, Thomas Rossrucker, Detlef Pazdzior, Georg Hering, David Larem
  • Anticorrosion additives for manufacturing processes, a process for preparation thereof and use thereof
    Publication number: 20110088589
    Abstract: The present invention relates to novel anticorrosion additives for manufacturing processes, comprising at least one triazole and the reaction product of at least one alkylene glycol and at least one carboxylic anhydride, to a process for preparation thereof and to the use thereof for corrosion protection for aluminium and/or aluminium alloys.
    Type: Application
    Filed: September 28, 2010
    Publication date: April 21, 2011
    Applicant: RHEIN CHEMIE RHEINAU GMBH
    Inventors: Sandra Leimenstoll, Anke Blaul, Reinhard Stier, Isabell Lange, David Larem