Patents by Inventor Lewin T. Wint

Lewin T. Wint 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).

  • Pharmaceutically acceptable salts of sertraline and pharmaceutical compositions thereof
    Patent number: 7094930
    Abstract: The present invention is directed to certain pharmaceutically acceptable salts of the therapeutically potent selective serotonin reuptake inhibitor, sertraline: and pharmaceutical compositions thereof, wherein said salts are selected from the group consisting of the p-toluenesulfonic acid salt, the fumaric acid salt, the benzenesulfonic acid salt, the benzoic acid salt, the L-tartaric acid salt and the (?)-camphor-10-sulfonic acid salt.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: August 22, 2006
    Assignee: Pfizer Inc
    Inventors: George J. Quallich, Lewin T. Wint
  • Process for preparing naphthyridones and intermediates
    Patent number: 7019142
    Abstract: A process for preparing a naphthyridone carboxylic acid and its derivatives makes use of side chain intermediates of formulae I and IV herein.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: March 28, 2006
    Assignee: Pfizer Inc.
    Inventors: Charles K. Chiu, Lewin T. Wint
  • Citric acid salt of a therapeutic compound and pharmaceutical compositions thereof
    Patent number: 6825193
    Abstract: The present invention is directed to a polymorph of the citrate salt of 4-(3,4-dichlorophenyl)-2-[2-(4-methylpiperazin-1-yl)-benzylidene]-thiomorpholin-3-one: and pharmaceutical compositions thereof.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: November 30, 2004
    Assignee: Pfizer Inc.
    Inventors: George J. Quallich, Lewin T. Wint
  • Pharmaceutically acceptable salts of sertraline and pharmaceutical compositions thereof
    Publication number: 20040198818
    Abstract: The present invention is directed to certain pharmaceutically acceptable salts of the therapeutically potent selective serotonin reuptake inhibitor, sertraline: 1
    Type: Application
    Filed: January 22, 2004
    Publication date: October 7, 2004
    Applicant: Pfizer Inc
    Inventors: George J. Quallich, Lewin T. Wint
  • Succinic acid salts of 5,7,14-triazatetracyclo[10.3.1.02,11.04,9] -hexadeca-1(11),3,5,7,9-pentaene and pharmaceutical compositions thereof
    Patent number: 6794388
    Abstract: The present invention is directed to the succinate salts of 5,7,13-triazatetracyclo[9.3.1.02,10.04,8]-pentadeca-2(10),3,5,8-tetraene and pharmaceutical compositions thereof. The invention is also directed to a process for preparation of the succinate salts.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 21, 2004
    Assignee: Pfizer Inc.
    Inventors: George J. Quallich, Lewin T. Wint
  • Citrate salt of 5,8,14-triazatetracyclo[10.3.1.02,11.04,9]-hexadeca-2(11),3,5,7,9-pentaene and pharmaceutical compositions thereof
    Patent number: 6787549
    Abstract: The present invention is directed to the citrate salt of 5,8,14-triazatetracyclo[10.3.1.02,11.04,9]-hexadeca-2(11),3,5,7,9-pentaene: and pharmaceutical compositions thereof. The present invention is also directed to the various forms of the citrate salt, particularly its hydrate and its anhydrous/nearly anhydrous polymorph. The invention is also directed to processes for preparation of these citrate salt forms.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: September 7, 2004
    Assignee: Pfizer Inc.
    Inventors: Phillip J. Johnson, Peter R. Rose, Glenn R. Williams, Lewin T. Wint
  • Citric acid salt of a therapeutic compound and pharmaceutical compositions thereof
    Publication number: 20030181444
    Abstract: The present invention is directed to a polymorph of the citrate salt of 4-(3,4-dichlorophenyl)-2-[2-(4-methylpiperazin-1-yl)-benzylidene]-thiomorpholin-3-one: 1
    Type: Application
    Filed: December 6, 2002
    Publication date: September 25, 2003
    Applicant: Pfizer Inc.
    Inventors: George J. Quallich, Lewin T. Wint
  • Citrate salt of 5,8,14-triazatetracyclo[10.3.1.02,11.04,9]-hexadeca-2(11),3,5,7,9-pentaene and pharmaceutical compositions thereof
    Publication number: 20030149091
    Abstract: The present invention is directed to the citrate salt of 5,8,14-triazatetracyclo[10.3.1.02,11.
    Type: Application
    Filed: May 6, 2002
    Publication date: August 7, 2003
    Inventors: Phillip J. Johnson, Peter R. Rose, Glenn R. Williams, Lewin T. Wint
  • Succinic acid salts of 5,7,14-triazatetracyclo[10.1.02.11.04,9] -hexadeca-1(11),3,5,7,9-pentaene and pharmaceutical compositions thereof
    Publication number: 20030149044
    Abstract: The present invention is directed to the succinate salts of 5,7,13-triazatetracyclo[9.3.1.02,10.
    Type: Application
    Filed: November 27, 2002
    Publication date: August 7, 2003
    Applicant: Pfizer Inc.
    Inventors: George J. Quallich, Lewin T. Wint
  • Process for preparing naphthyridones and intermediates
    Publication number: 20020095043
    Abstract: A process for preparing a naphthyridone carboxylic acid and its derivatives makes use of side chain intermediates of formulae I and IV herein.
    Type: Application
    Filed: March 4, 2002
    Publication date: July 18, 2002
    Inventors: Charles K. Chiu, Lewin T. Wint
  • Process for preparing naphthyridones and intermediates
    Patent number: 6184380
    Abstract: A process for preparing a naphthyridone carboxylic acid and its derivatives makes use of side chain intermediates of formulae I and IV herein.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: February 6, 2001
    Assignee: Pfizer Inc.
    Inventors: Charles K. Chiu, Lewin T. Wint
  • Apo B-secretion/MTP inhibitor hydrochloride salt
    Patent number: 5968950
    Abstract: A hydrochloride salt of an Apo B secretion/MTP inhibitor, methods of making the salt, methods of using the salt and pharmaceutical compositions containing the salt are disclosed.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: October 19, 1999
    Assignee: Pfizer Inc
    Inventors: George J. Quallich, George Chang, Lewin T. Wint