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).

  • Compositions of hydroxypropyl-beta-cyclodextrin and methods of purifying the same
    Patent number: 11958917
    Abstract: Compositions comprising mixtures of hydroxypropyl-?-cyclodextrin, wherein the compositions may be isomerically purified, and methods of isomerically purifying a mixture of hydroxypropyl-?-cyclodextrins.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: April 16, 2024
    Assignee: BEREN THERAPEUTICS P.B.C.
    Inventors: Steven Pfeiffer, Dustin McMinn, Gabor Benkovics
  • COMPOSITIONS OF HYDROXYPROPYL-BETA-CYCLODEXTRIN AND METHODS OF PURIFYING THE SAME
    Publication number: 20240067760
    Abstract: The present disclosure relates to compositions comprising mixtures of hydroxypropyl-?-cyclodextrin, wherein the compositions may be isomerically purified. The disclosure also relates to methods of isomerically purifying a mixture of hydroxypropyl-?-cyclodextrins.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 29, 2024
    Inventors: Steven Pfeiffer, Dustin McMinn, Gabor Benkovics
  • COMPOSITIONS OF HYDROXYPROPYL-BETA-CYCLODEXTRIN AND METHODS OF PURIFYING THE SAME
    Publication number: 20230265219
    Abstract: The present disclosure relates to compositions comprising mixtures of hydroxypropyl-?-cyclodextrin, wherein the compositions may be isomerically purified. The disclosure also relates to methods of isomerically purifying a mixture of hydroxypropyl-?-cyclodextrins.
    Type: Application
    Filed: February 17, 2023
    Publication date: August 24, 2023
    Inventors: Steven Pfeiffer, Dustin McMinn, Gabor Benkovics
  • METHODS OF TREATING CNS TUMORS WITH TESETAXEL
    Publication number: 20210386720
    Abstract: The present disclosure provides methods for treating a patient with a cancer in the central nervous system, such as a cancer that is a metastasis of a primary cancer, comprising administering tesetaxel and capecitabine to the patient.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 16, 2021
    Inventors: Joyce James, Kevin Tang, Stew Kroll, John G. Lemkey, Steven Pfeiffer, Jeff Vacirca, Thomas Wei
  • DOSING SCHEDULE FOR TESETAXEL AND CAPECITABINE
    Publication number: 20200179427
    Abstract: The present disclosure provides methods for treating a patient with cancer, such as metastatic breast cancer, comprising administering tesetaxel and capecitabine to the patient.
    Type: Application
    Filed: June 1, 2018
    Publication date: June 11, 2020
    Applicant: Odonate Therapeutics, Inc.
    Inventors: Thomas Wei, Kevin Tang, Stew Kroll, John G. Lemkdy, Steven Pfeiffer, Jeff Vacirca
  • PROCESSES AND INTERMEDIATES FOR PREPARING ANTI-HIV AGENTS
    Publication number: 20190359644
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Application
    Filed: December 20, 2018
    Publication date: November 28, 2019
    Inventors: Richard Hung Chiu Yu, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • Processes and intermediates for preparing anti-HIV agents
    Patent number: 10196419
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 5, 2019
    Assignee: Gilead Sciences, Inc.
    Inventors: Richard Hung Chiu Yu, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • PROCESSES AND INTERMEDIATES FOR PREPARING ANTI-HIV AGENTS
    Publication number: 20180079773
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 22, 2018
    Inventors: Richard Hung Chiu Yu, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • Processes and intermediates for preparing anti-HIV agents
    Patent number: 9783567
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: October 10, 2017
    Assignee: Gilead Sciences, Inc.
    Inventors: Richard Hung Chiu Yu, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • PROCESSES AND INTERMEDIATES FOR PREPARING ANTI-HIV AGENTS
    Publication number: 20160340379
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Application
    Filed: February 17, 2016
    Publication date: November 24, 2016
    Inventors: RICHARD HUNG CHIU YU, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • Methods and intermediates for preparing pharmaceutical agents
    Patent number: 9428473
    Abstract: The invention provides methods and intermediates that are useful for preparing a compound of formula I: and salts thereof.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: August 30, 2016
    Assignee: Gilead Sciences, Inc.
    Inventors: Richard Polniaszek, Steven Pfeiffer, Richard Yu, Aaron Cullen, Eric Dowdy, Duong Tran, Kenneth Kent, Zhongxin Zhou, Douglas Cordeau, Leah Easton-Scott
  • Processes and intermediates for preparing anti-HIV agents
    Patent number: 9296779
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: March 29, 2016
    Assignee: GILEAD SCIENCES, INC.
    Inventors: Richard Hung Chiu Yu, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Duc-Phi Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • METHODS AND INTERMEDIATES FOR PREPARING PHARMACEUTICAL AGENTS
    Publication number: 20160002186
    Abstract: The invention provides methods and intermediates that are useful for preparing a compound of formula I: and salts thereof.
    Type: Application
    Filed: July 14, 2015
    Publication date: January 7, 2016
    Inventors: Richard Polniaszek, Steven Pfeiffer, Richard Yu, Aaron Cullen, Eric Dowdy, Duong Tran, Kenneth Kent, Zhongxin Zhou, Douglas Cordeau, Leah Easton-Scott
  • Methods and intermediates for preparing pharmaceutical agents
    Patent number: 9115100
    Abstract: The invention provides methods and intermediates that are useful for preparing a compound of formula I: and salts thereof.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: August 25, 2015
    Assignee: Gilead Sciences, Inc.
    Inventors: Richard Polniaszek, Steven Pfeiffer, Richard Yu, Aaron Cullen, Eric Dowdy, Duong Tran, Kenneth Kent, Zhongxin Zhou, Doug Cordeau, Leah Easton-Scott
  • PROCESSES AND INTERMEDIATES FOR PREPARING ANTI-HIV AGENTS
    Publication number: 20150203525
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Application
    Filed: February 5, 2015
    Publication date: July 23, 2015
    Inventors: Richard Hung Chiu YU, Brandon Heath BROWN, Richard P. POLNIASZEK, Benjamin R. GRAETZ, Keiko SUJINO, Duong Duc-Phi TRAN, Alan Scott TRIMAN, Kenneth M. KENT, Steven PFEIFFER
  • Processes and intermediates for preparing anti-HIV Agents
    Patent number: 8987437
    Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: March 24, 2015
    Assignee: Gilead Sciences, Inc.
    Inventors: Richard Hung Chiu Yu, Brandon Heath Brown, Richard P. Polniaszek, Benjamin R. Graetz, Keiko Sujino, Duong Duc-Phi Tran, Alan Scott Triman, Kenneth M. Kent, Steven Pfeiffer
  • METHODS AND INTERMEDIATES FOR PREPARING PHARMACEUTICAL AGENTS
    Publication number: 20150005493
    Abstract: The invention provides methods and intermediates that are useful for preparing a compound of formula I: and salts thereof.
    Type: Application
    Filed: September 3, 2014
    Publication date: January 1, 2015
    Inventors: Richard POLNIASZEK, Steven PFEIFFER, Richard YU, Aaron CULLEN, Eric DOWDY, Duong TRAN, Kenneth KENT, Zhongxin ZHOU, Doug CORDEAU, Leah EASTON-SCOTT
  • Methods and intermediates for preparing pharmaceutical agents
    Patent number: 8853210
    Abstract: The invention provides methods and intermediates that are useful for preparing a compound of formula I: and salts thereof.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: October 7, 2014
    Assignee: Gilead Sciences, Inc.
    Inventors: Richard Polniaszek, Steven Pfeiffer, Richard Yu, Aaron Cullen, Eric Dowdy, Duong Tran, Kenneth Kent, Zhongxin Zhou, Doug Cordeau, Leah Easton-Scott
  • Process and intermediates for preparing integrase inhibitors
    Patent number: 8796459
    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 14, 2012
    Date of Patent: August 5, 2014
    Assignee: Gilead Sciences, Inc.
    Inventors: Eric Dowdy, Xi Chen, Steven Pfeiffer
  • Process and intermediates for preparing integrase inhibitors
    Patent number: 8759525
    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: April 23, 2013
    Date of Patent: June 24, 2014
    Assignee: Gilhead Sciences, Inc.
    Inventors: Eric Dowdy, Steven Pfeiffer