Patents by Inventor Steven Pfeiffer

Steven Pfeiffer 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 AND INTERMEDIATES FOR PREPARING INTEGRASE INHIBITORS
    Publication number: 20100292480
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare 4-oxoquinolone compounds having useful integrase inhibiting properties.
    Type: Application
    Filed: September 11, 2008
    Publication date: November 18, 2010
    Applicant: Gilead Sciences, Inc
    Inventors: Eric Dowdy, Steven Pfeiffer
  • Process and intermediates for preparing integrase inhibitors
    Patent number: 7825252
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare 4-oxoquinolone compounds having useful integrase inhibiting properties.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: November 2, 2010
    Assignee: Gilead Sciences, Inc.
    Inventors: Eric Dowdy, Xi Chen, Steven Pfeiffer
  • METHODS AND INTERMEDIATES FOR PREPARING PHARMACEUTICAL AGENTS
    Publication number: 20100256366
    Abstract: The invention provides methods and intermediates that are useful for preparing a compound of formula I: and salts thereof.
    Type: Application
    Filed: April 1, 2010
    Publication date: October 7, 2010
    Inventors: Richard Polniaszek, Steven Pfeiffer, Richard Yu, Aaron Cullen, Eric Dowdy, Duong Tran, Kenneth Kent, Zhongxin Zhou, Doug Cordeau, Leah Easton
  • PROCESSES FOR PREPARING HIV REVERSE TRANSCRIPTASE INHIBITORS
    Publication number: 20090163712
    Abstract: Compounds of Formula (I): can be prepared by a multi-step process from compounds of Formula (II): wherein G is Cl, Br or I.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 25, 2009
    Applicants: Gilead Sciences, Inc., Korea Research Institute of Chemical Technology
    Inventors: Hongyan Guo, Stacey Heumann, Ill Young Lee, Michael L. Mitchell, Steven Pfeiffer, Jong Chan Son
  • PROCESS AND INTERMEDIATES FOR PREPARING INTEGRASE INHIBITORS
    Publication number: 20090099366
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare 4-oxoquinolone compounds having useful integrase inhibiting properties.
    Type: Application
    Filed: September 11, 2008
    Publication date: April 16, 2009
    Applicant: Gilead Sciences, Inc.
    Inventors: Eric Dowdy, Steven Pfeiffer
  • PROCESS AND INTERMEDIATES FOR PREPARING INTEGRASE INHIBITORS
    Publication number: 20080125594
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare 4-oxoquinolone compounds having useful integrase inhibiting properties.
    Type: Application
    Filed: September 11, 2007
    Publication date: May 29, 2008
    Applicant: Gilead Sciences, Inc.
    Inventors: Eric Dowdy, Xi Chen, Steven Pfeiffer