Patents by Inventor Walter A. Gregory

Walter A. Gregory 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).

  • Aminomethyloxooxazolidinyl arylbenzene derivatives useful as antibacterial agents
    Patent number: 5254577
    Abstract: Novel aminomethyloxooxazolidinyl arylbenzene derivatives, wherein the aryl includes the phenyl, substituted phenyl, pyridyl, and substituted pyridyl groups, such as (l)-N-{3-[4-(4'-pyridyl)phenyl]-2-oxooxazolidin-5-ylmethyl}acetamide, possess useful antibacterial activity.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: October 19, 1993
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Randall K. Carlson, Chung-Ho Park, Walter A. Gregory
  • Aminomethyloxooxazlidinyl arylbenzene derivatives useful as antibacterial agents
    Patent number: 5130316
    Abstract: Novel aminomethyloxooxazolidinyl arylbenzene derivatives, wherein the aryl includes the phenyl, substituted phenyl, pyridyl, and substituted pyridyl groups, such as (l)-N-{3-[4-(4 '-pyridyl)phenyl]-2-oxooxazolidin-5-ylmethyl}acetamide, possess useful antibacterial activity.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: July 14, 1992
    Assignee: Du Pont Merck Pharmaceutical Company
    Inventors: Randall K. Carlson, Chung-Ho Park, Walter A. Gregory
  • Aminomethyloxooxazolidinyl arylbenzene derivatives
    Patent number: 5043443
    Abstract: Novel aminomethyloxooxazolidinyl arylbenzene derivatives, wherein the aryl includes the phenyl, substituted phenyl, pyridyl, and substituted pyridyl groups, such as (l)-N-{3-[4- (4'-pyridyl)phenyl]-2-oxooxazolidin-5-ylmethyl}acetamide, possess useful antibacterial activity.
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: August 27, 1991
    Assignee: Du Pont Merck Pharmaceutical Company
    Inventors: Randall K. Carlson, Chung-Ho Park, Walter A. Gregory
  • Aminomethyl oxooxazolidinyl ethenylbenzene derivatives useful as antibacterial agents
    Patent number: 4977173
    Abstract: Aminomethyl oxooxazolidinyl ethenylbenzene derivatives, including the nitriles, sulfoxides, acetamides and nitro compounds, such as l-N-[3-[4-(E-1-methyl-2-cyanoethenyl)phenyl]-2-oxooxazolidin-5-ylmethyl]ac etamide, possess useful antibacterial activity.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: December 11, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David R. Brittelli, Peter F. Corless, Walter A. Gregory, Chung-Ho Park
  • Aminomethyloxooxazolidinyl arylbenzene derivatives useful as antibacterial agents
    Patent number: 4948801
    Abstract: Novel aminomethyloxooxazolidinyl arylbenzene derivatives, wherein the aryl includes the phenyl, substituted phenyl, pyridyl, and substituted pyridyl groups, such as (l)-N-{3-[4-(4'-pyridyl)phenyl]-2-oxooxazolidin-5-ylmethyl{acetamide, possess useful antibacterial activity.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: August 14, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Randall K. Carlson, Chung-Ho Park, Walter A. Gregory
  • Aminomethyl oxooxazolidinyl aroylbenzene derivatives useful as antibacterial agents
    Patent number: 4942183
    Abstract: Aminomethyl oxooxazolidinyl aroylbenzene derivatives, such as l-N-[3-[4-(2,4-difluorobenzoyl)phenyl]-2-oxooxazolidin-5-ylmethyl]acetamid e, possess useful antibacterial activity.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: July 17, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Walter A. Gregory, Hollis S. Kezar, III
  • Aminomethyl oxooxazolidinyl benzenes useful as antibacterial agents
    Patent number: 4705799
    Abstract: Novel aminomethyl oxooxazolidinyl benzene derivatives, including the sulfides, sulfoxides, sulfones and sulfonamides, such as (l)-N-[3-[4-(methylsulfinyl)phenyl]-2-oxooxazolidin-5-ylmethyl]acetamide, possess useful antibacterial activity.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: November 10, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Walter A. Gregory
  • P-Oxooxazolidinylbenzene compounds as antibacterial agents
    Patent number: 4461773
    Abstract: Novel p-oxooxazolidinylbenzene compounds, such as l-4-[5-(hydroxymethyl)-2-oxooxazolidin-3-yl]- benzenesulfonamide, are useful as antibacterial agents.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: July 24, 1984
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Walter A. Gregory
  • Herbicidal benzamides
    Patent number: 4191554
    Abstract: Herbicidal compounds of the formula: ##STR1## where R.sub.1 is hydrogen, methyl or ethyl;R.sub.2 is alkyl of 1-4 carbon atoms, methoxy or cyanomethyl; and p1 R.sub.1 and R.sub.2 together can be --(CH.sub.2).sub.4 --, provided that when R.sub.2 is alkyl of 3 or 4 carbon atoms, methoxy or cyanomethyl, R.sub.1 cannot be ethyl.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: March 4, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Walter A. Gregory