Patents by Inventor Kenneth Alfred Martin Kremer

Kenneth Alfred Martin Kremer 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 THE PREPARATION OF 2,4-DICHLORO-7H-PYRROLO[2,3H]QUINAZOLINE
    Publication number: 20100036123
    Abstract: The invention relates to a method of preparing 2,4-dichloro-7H-pyrrolo[2,3-h]quinazoline (II): from 1H-pyrrolo[2,3-h]quinazoline-2,4-dione.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 11, 2010
    Applicant: Wyeth
    Inventors: Kenneth Alfred Martin Kremer, Uresh Shantilal Shah, Aranapakam Mudumbai Venkatesan, Zecheng Chen, Osvaldo dos Santos
  • Processes For Preparing Bicyclic Oxazine Carboxaldehyde and Beta-Lactamase Inhibitors
    Publication number: 20090018332
    Abstract: The invention relates to processes for the preparation of the bicyclic oxazine carboxaldehyde Compound 1: The invention also relates to the use of Compound 1 in the preparation of ?-lactamase inhibitors.
    Type: Application
    Filed: June 24, 2008
    Publication date: January 15, 2009
    Applicant: Wyeth
    Inventors: Kenneth Alfred Martin Kremer, Lalitha Krishnan, Aranapakam Mudumbai Venkatesan, Mellard Norman Jennings, Joseph Zeldis, Takao Abe, Tarek Suhayl Mansour, Henry Lee Strong
  • Process for synthesizing beta-lactamase inhibitor intermediates
    Patent number: 7276611
    Abstract: There is provided a process for the preparation of bicyclicheteroaryl carboxaldehydes having the structural Formula I where X and Y are defined in the specification The bicyclic heteroaryl carboxaldehydes are useful as intermediates in the preparation of ?-lactamase inhibitors.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: October 2, 2007
    Assignee: Wyeth Holdings Corporation
    Inventors: Michael William Winkley, Anita Wai-Yin Chan, Ivo L. Jirkovsky, Kenneth Alfred Martin Kremer, Joseph Zeldis, Antonia Aristotelevna Nikitenko, Henry Lee Strong, Tarek Mansour, Gulnaz Khafizova, Aranapakam M. Venkatesan
  • Process for synthesizing beta-lactamase inhibitor intermediates
    Publication number: 20040242874
    Abstract: There is provided a process for the preparation of bicyclicheteroaryl carboxaldehydes having the structural Formula I where X and Y are defined in the specification 1
    Type: Application
    Filed: May 12, 2004
    Publication date: December 2, 2004
    Applicant: Wyeth Holdings Corporation
    Inventors: Michael William Winkley, Anita Wai-Yin Chan, Ivo L. Jirkovsky, Kenneth Alfred Martin Kremer, Joseph Zeldis, Antonia Aristotelevna Nikitenko, Henry Lee Strong, Tarek Mansour, Gulnaz Khafizova, Aranapakam M. Venkatesan
  • Process for the preparation of 2,3-pyridinedicarboximides
    Publication number: 20020120143
    Abstract: There is provided a process for the preparation of 2,3-pyridinedicarboximides having the structural formula I 1
    Type: Application
    Filed: June 29, 2001
    Publication date: August 29, 2002
    Applicant: Intellectual Property Department, BASF Aktiengesellschaft
    Inventors: Kenneth Alfred Martin Kremer, Wen-Xue Wu, Donald Roy Maulding
  • Process for the recovery and recycle of D-tartaric acid
    Publication number: 20020019567
    Abstract: There is provided a process for the recovery of essentially enantiomerically pure D-tartaric acid from aqueous and organic waste streams generated in the resolution of racemic 2-amino-2,3-dimethylbutyronitrile via the formation and isolation of a crystalline monobasic tartrate salt.
    Type: Application
    Filed: December 28, 2000
    Publication date: February 14, 2002
    Applicant: American Cyanamid Company
    Inventor: Kenneth Alfred Martin Kremer
  • Process for the recovery and recycle of D-tartaric acid
    Patent number: 6346649
    Abstract: There is provided a process for the recovery of essentially enantiomerically pure D-tartaric acid from aqueous and organic waste streams generated in the resolution of racemic 2-amino-2,3-dimethylbutyronitrile via the formation and isolation of a crystalline monobasic tartrate salt. The recovered optically pure D-tartaric acid may be efficiently recycled to provide a sustainable resolution of racemic 2-amino-2,3-dimethylbutyronitrile.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: February 12, 2002
    Assignee: BASF Aktiengesellschaft
    Inventor: Kenneth Alfred Martin Kremer
  • Process for the preparation of 2,3-pyridinedicarboximides
    Patent number: 6316629
    Abstract: There is provided a process for the preparation of 2,3-pyridinedicarboximides having the structural formula I The 2,3-pyridinedicarboximides are useful as intermediates in the preparation of herbicidal 2-(2-imidazolin-2-yl)nicotinic acids, esters and salts.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: November 13, 2001
    Assignee: American Cyanamid Co.
    Inventors: Kenneth Alfred Martin Kremer, Wen-Xue Wu, Donald Roy Maulding
  • Process for the preparation of 5-(alkoxymethyl)-2,3-pyridinedicarboximide compounds
    Patent number: 6034253
    Abstract: There is provided a process for the preparation of 5-(alkoxymethyl)-2,3-pyridinedicarboximide compounds having the structural formula I ##STR1## The 5-(alkoxymethyl)-2,3-pyridinedicarboximide compounds are useful as intermediates in the preparation of herbicidal 5-(alkoxymethyl)-2-(2-imidazolin-2-yl)-nicotinic acid, ester and salt compounds.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: March 7, 2000
    Assignee: America Cyanamid Company
    Inventors: Kenneth Alfred Martin Kremer, Wen-Xue Wu, Donald Roy Maulding, deceased
  • Process for the manufacture of N-(1-cyanoalkyl)-2-phenoxypropionamide derivatives
    Patent number: 5942640
    Abstract: The present invention provides an efficient, economic and ecologically sound process for the manufacture of a compound of formula I via the reaction of a suitable acid halide and an appropriate amine in the presence of aqueous carbonate or bicarbonate or a mixture thereof and optionally in the presence of a co-solvent.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: August 24, 1999
    Assignee: American Cyanamid Company
    Inventors: Albert Anthony Cevasco, Kenneth Alfred Martin Kremer
  • Process for the preparation of 5-(alkoxymethyl)-2,3-pyridinedicarboximide compounds
    Patent number: 5905154
    Abstract: There is provided a process for the preparation of 5-(alkoxymethyl)-2,3-pyridinedicarboximide compounds having the structural formula I ##STR1## The 5-(alkoxymethyl)-2,3-pyridinedicarboximide compounds are useful as intermediates in the preparation of herbicidal 5-(alkoxymethyl)-2-(2-imidazolin-2-yl)nicotinic acid, ester and salt compounds.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: May 18, 1999
    Assignee: American Cyanamid Company
    Inventors: Kenneth Alfred Martin Kremer, Wen-Xue Wu, Donald Roy Maulding, deceased
  • Process for the preparation of 2,3-pyridinedicarboximides
    Patent number: 5849916
    Abstract: There is provided a process for the preparation of 2,3-pyridinedicarboximides having the structural formula I ##STR1## The 2,3-pyridinedicarboximides are useful as intermediates in the preparation of herbicidal 2-(2-imidazolin-2-yl)nicotinic acids, esters and salts.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: December 15, 1998
    Assignee: American Cyanamid Company
    Inventors: Kenneth Alfred Martin Kremer, Wen-Xue Wu, Donald Roy Maulding, deceased