Patents by Inventor Christian Hoff

Christian Hoff 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).

  • Patent number: 11939903
    Abstract: A method for operating an exhaust burner with a secondary air system downstream of a combustion engine of a motor vehicle. The method includes: activating an ignition device as a function of a release condition, the ignition device being heated up to a specifiable target temperature; metering fuel at a first time point into a combustion chamber of the exhaust burner at a first injection frequency using an injection valve, and the combustion chamber not being actively supplied with air; setting a first target air-mass flow using a secondary air system at a further, second time point, wherein the air-mass flow is increased strictly monotonically; controlling the air-fuel ratio to a first target air-fuel ratio as a function of a lambda sensor starting from the second time point, and metering fuel at a second injection frequency; setting a second target air-mass flow at a further, third time point.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: March 26, 2024
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christian Disch, Patrick Hoff, Torsten Kunz, William Krein
  • Patent number: 8742077
    Abstract: The invention relates to a method for preparing 1,6:2,3-dianhydro-â-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound C, where R is an alykyl group and R? is an activating agent, in an alcohol/alcoholate mixture under anhydrous conditions.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: June 3, 2014
    Assignee: Sanofi
    Inventors: Pierre Jean Grossi, Christian Hoff, Jean-Claude Rovera, Raphael Sole
  • Publication number: 20120022292
    Abstract: Method for preparing eplivanserin hemifumarate.
    Type: Application
    Filed: November 10, 2009
    Publication date: January 26, 2012
    Applicant: SANOFI-AVENTIS
    Inventors: Eric Garcia, Christian Hoff
  • Publication number: 20110213141
    Abstract: The invention relates to a method for preparing 1,6:2,3-dianhydro-â-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound C, where R is an alykyl group and R? is an activating agent, in an alcohol/alcoholate mixture under anhydrous conditions.
    Type: Application
    Filed: September 15, 2009
    Publication date: September 1, 2011
    Applicant: SANOFI-AVENTIS
    Inventors: Pierre Jean Grossi, Christian Hoff, Jean-Claude Rovera, Raphael Sole
  • Patent number: 7584638
    Abstract: A device for calibrating a multi-roll leveler for leveling a metal strip includes an assembly having two series of rolls, namely upper rolls and lower rolls which face each other so as to imbricate the rolls of one series into those of the other. The series of rolls are placed substantially parallel to each other and perpendicular to the run direction of the strip to be leveled. A rigid measurement bar of sufficient length is positioned in the leveling direction between the upper and lower rolls, extending over all the rolls, and having rigid protrusions integral with the bar reproducing, when they are placed plumb with the lower rolls, the action of the lower rolls and their mechanical properties. A thin metal plate rests on these protrusions and is fastened to one of them at around the middle of the bar and includes extensometers for measuring its elastic deformations.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: September 8, 2009
    Assignee: USINOR
    Inventors: Olivier Madelaine-Dupuich, Stéphane Rossi, Gilbert Petig, Philippe Wallendorf, Dominique Kircher, Fabrice Tondo, Eric Vasseur, Alain Fouratier, Jacques-Yves Bourgon, Christian Hoff
  • Publication number: 20070033976
    Abstract: A device for calibrating a multi-roll leveler for leveling a metal strip includes an assembly having two series of rolls, namely upper rolls and lower rolls which face each other so as to imbricate the rolls of one series into those of the other. The series of rolls are placed substantially parallel to each other and perpendicular to the run direction of the strip to be leveled. A rigid measurement bar of sufficient length is positioned in the leveling direction between the upper and lower rolls, extending over all the rolls, and having rigid protrusions integral with the bar reproducing, when they are placed plumb with the lower rolls, the action of the lower rolls and their mechanical properties. A thin metal plate rests on these protrusions and is fastened to one of them at around the middle of the bar and includes extensometers for measuring its elastic deformations.
    Type: Application
    Filed: March 3, 2004
    Publication date: February 15, 2007
    Applicant: USINOR
    Inventors: Olivier Madelaine-Dupuis, Stephane Rossi, Gilbert Petig, Philippe Wallendorf, Dominique Kircher, Fabrice Tondo, Eric Vasseur, Alain Fouratier, Jacques-Yves Bourgon, Christian Hoff
  • Patent number: 7008959
    Abstract: The invention relates to a novel crystalline form of irbesartan to pharmaceutical compositions containing it, to processes for preparing it, and to a method for treating cardiovascular diseases utilizing it.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: March 7, 2006
    Assignee: Sanofi-Aventis
    Inventors: Bruno Franc, Christian Hoff, San Kiang, Mark D. Lindrud, Olivier Monnier, Chenkou Wei
  • Publication number: 20050032862
    Abstract: The invention relates to a novel crystalline form of irbesartan, to pharmaceutical compositions containing it, to processes for preparing it, and to a method for treating cardiovascular diseases utilizing it.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 10, 2005
    Inventors: Bruno Franc, Christian Hoff, San Kiang, Mark Lindrud, Olivier Monnier, Chenkou Wei
  • Patent number: 6800761
    Abstract: The invention relates to a novel crystalline form of irbesartan, to pharmaceutical compositions containing it, to processes for preparing it, and to a method for treating cardiovascular diseases utilizing it.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: October 5, 2004
    Assignee: Sanofi-Synthelabo
    Inventors: Bruno Franc, Christian Hoff, San Kiang, Mark D. Lindrud, Olivier Monnier, Chenkou Wei
  • Patent number: 5804192
    Abstract: The invention relates to a process for obtaining procyanidol oligomers according to which:an appropriate plant is treated by means of an extractive mixture composed of water, of a water-miscible organic solvent capable of dissolving the procyanidol oligomers and of sodium chloride,the crude mixture of procyanidol oligomers obtained is purified by removal of the extractive mixture and extraction of the residue, the extractive mixture optionally being recycled in the stage of treatment of the plant,the procyanidol oligomers are recovered in a pure form by precipitation.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: September 8, 1998
    Assignee: Sanofi
    Inventors: Bruno Franc, Christian Hoff