Patents by Inventor Anderson D. Ifill

Anderson D. Ifill 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).

  • Patent number: 5629323
    Abstract: Amide Derivatives of formula (I) wherein R.sup.1 is a mono or bicyclic heteroaryl radical, R.sup.2 is cycloalkyl, R.sup.3 and R.sup.4 each represent hydrogen or lower alkyl, and R.sup.5 is a group of formula (A) or (B) or (C): R.sup.8 --CH.sub.2 --CH.sub.2 -- or (D) or (E): R.sup.9 OCH.sub.2 CHOHCH.sub.2 -- or (F): R.sup.9 OCH.sub.2 CH.sub.2 -- and their pharmaceutically acceptable salts are 5-HT.sub.1A binding agents and may be used, for example, as anxiolytics.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: May 13, 1997
    Assignee: John Wyeth & Brother, Ltd.
    Inventors: Ian A. Cliffe, Anderson D. Ifill
  • Patent number: 5610295
    Abstract: Amide Derivatives of formula (I): R.sup.5 NR.sup.4 (CR.sub.2).sub.2 CHR.sup.3 CONR.sup.1 R.sup.2 and their pharmaceutically acceptable salts are 5-HT1A binding agents and may be used, for example, as anxiolytics. The radicals, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have specified meanings.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: March 11, 1997
    Assignee: John Wyeth & Brother, Ltd.
    Inventors: Ian A. Cliffe, Anderson D. Ifill
  • Patent number: 5430033
    Abstract: Piperazine derivatives of formula I ##STR1## and their pharmaceutically acceptable acid addition salts are 5-HT.sub.1A binding agents, particularly 5-HT.sub.1A antagonists and may be used, for example, as anxiolytics. In the formula R is hydrogen or one or two lower alkyl groups, R.sup.1 is a mono of bicyclic aryl or heteroaryl radical, R.sup.2 is aryl and A is a C.sub.2-5 alkylene chain optionally substituted by lower alkyl.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: July 4, 1995
    Assignee: John Wyeth & Brother Ltd.
    Inventors: Ian A. Cliffe, Anderson D. Ifill, Howard L. Mansell, Terence J. Ward, Alan C. White
  • Patent number: 5369103
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: November 29, 1994
    Assignee: John Wyeth & Brother, Limited
    Inventors: Ian A. Cliffe, Alan C. White, Anderson D. Ifill