Patents by Inventor Andrew V. Trask

Andrew V. Trask 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).

  • Crystal forms of azithromycin
    Patent number: 7309782
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: December 18, 2007
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Patent number: 7307156
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 11, 2007
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask, Joseph E. Mertz
  • Crystal forms of azithromycin
    Patent number: 7282486
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: October 16, 2007
    Assignee: Pfizer Inc
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Patent number: 7105179
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: September 12, 2006
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Patent number: 7081525
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: July 25, 2006
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Patent number: 7053192
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: May 30, 2006
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Patent number: 6977243
    Abstract: The invention relates to crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: December 20, 2005
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Stable non-dihydrate azithromycin oral suspensions
    Patent number: 6861413
    Abstract: This invention relates to a powder for oral suspension, and an oral suspension made therefrom, which comprises a n-propanol solvate of non-dihydrate azithromycin and an azithromycin conversion stabilizing excipient, wherein said excipient reduces the conversion of the form of azithromycin, when placed in suspension, to another form of azithromycin. This invention also relates to an oral suspension which comprises a n-propanol solvate of non-dihydrate azithromycin and an aqueous vehicle.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 1, 2005
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Salt forms of E-2-methoxy-N-(3-{4-[3 methyl-4-(6-methyl-pyridin-3-yloxy)-phenylamino]-quinazolin-6-yl}-allyl)-acetamide and method of production
    Patent number: 6844349
    Abstract: The invention relates to succinate and malonate complexes of E-2-Methoxy-N-(3-{4-[3-methyl-4-(6-methyl-pyridin-3-yloxy)-phenylamino]-quinazolin-6-yl}-allyl)-acetamide having the following formula I: More particular the present invention relates to monosuccinate, hemisuccinate, sesquisuccinate and di-malonate complexes of formula I. The invention also relates to pharmaceutical compositions containing the succinate and malonate complexes of formula I. The invention further relates to methods of treating hyperproliferative diseases, such as cancers, in mammals, especially humans by administering the above complexes and to methods of preparing the above complexes.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 18, 2005
    Assignee: Pfizer Inc
    Inventors: John C. Kath, Daniel T. Richter, Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Publication number: 20040138149
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Application
    Filed: August 27, 2003
    Publication date: July 15, 2004
    Applicant: Pfizer Inc
    Inventors: Zheng J. Li, Andrew V. Trask
  • Stable non-dihydrate azithromycin oral suspensions
    Publication number: 20040121966
    Abstract: This invention relates to a powder for oral suspension, and an oral suspension made therefrom, which comprises a n-propanol solvate of non-dihydrate azithromycin and an azithromycin conversion stabilizing excipient, wherein said excipient reduces the conversion of the form of azithromycin, when placed in suspension, to another form of azithromycin.
    Type: Application
    Filed: July 15, 2003
    Publication date: June 24, 2004
    Applicant: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Publication number: 20040082527
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Application
    Filed: August 28, 2003
    Publication date: April 29, 2004
    Applicant: Pfizer Inc
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Publication number: 20040043944
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 4, 2004
    Applicant: Pfizer Inc
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Publication number: 20040043945
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 4, 2004
    Applicant: Pfizer Inc
    Inventors: Zheng J. Li, Andrew V. Trask
  • Crystal forms of azithromycin
    Publication number: 20030162730
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Application
    Filed: May 21, 2002
    Publication date: August 28, 2003
    Inventors: Zheng J. Li, Andrew V. Trask
  • Salt forms of E-2-Methoxy-N-(3-{4-[3 methyl-4-(6-methyl-pyridin-3-yloxy)-phenylamino]-quinazolin-6-yl}-allyl)-acetamide and method of production
    Publication number: 20030158217
    Abstract: The invention relates to succinate and malonate complexes of E-2-Methoxy-N-(3-{4-[3-methyl-4-(6-methyl-pyridin-3-yloxy)-phenylamino]-quinazolin-6-yl}-allyl)-acetamide having the following formula I: 1
    Type: Application
    Filed: December 10, 2002
    Publication date: August 21, 2003
    Applicant: Pfizer Inc.
    Inventors: John C. Kath, Daniel T. Richter, Zheng J. Li, Andrew V. Trask