Patents by Inventor Porter C. Johnson

Porter C. Johnson 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).

  • Novel bile sequestrant resin
    Patent number: 4649048
    Abstract: Particular quaternized vinylimidazole-ethylene glycol dimethacrylate copolymers are useful to sequester non-absorbed bile acids in the intestinal tract to form a complex which is excreted in the feces.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: March 10, 1987
    Assignee: Bristol-Myers Company
    Inventor: Porter C. Johnson
  • Novel bile sequestrant resin
    Patent number: 4604430
    Abstract: Particular quaternized vinylimidazole-ethylene glycol dimethacrylate copolymers are useful to sequester non-absorbed bile acids in the intestinal tract to form a complex which is excreted in the feces.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: August 5, 1986
    Assignee: Bristol-Myers Company
    Inventor: Porter C. Johnson
  • 2-Alkynyl-5-indanyloxyacetic acids
    Patent number: 4334088
    Abstract: Indanyloxy compounds having 2-alkynyl substituents which exhibit diuretic, saluretic, and uricosuric activity are described. The compounds are obtained according to a process involving selective etherification of a 5-hydroxyindanone followed by alkynylation with a silylated alkynyl bromide to provide novel silylated intermediates which are hydrolyzed to indanyloxy compounds such as (6,7-dichloro-1-oxo-2-phenyl-2-propargyl-5-indanyloxy)acetic acid.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: June 8, 1982
    Assignee: Mead Johnson & Company
    Inventors: Porter C. Johnson, William L. Matier
  • Silylated indanyloxyacetates
    Patent number: 4291168
    Abstract: Indanyloxy compounds having 2-alkynyl substituents which exhibit diuretic, saluretic, and uricosuric activity are described. The compounds are obtained according to a process involving selective etherification of a 5-hydroxyindanone followed by alkynylation with a silylated alkynyl bromide to provide novel silylated intermediates which are hydrolyzed to indanyloxy compounds such as (6,7-dichloro-1-oxo-2-phenyl-2-propargyl-5-indanyloxy)acetic acid.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: September 22, 1981
    Assignee: Mead Johnson & Company
    Inventors: Porter C. Johnson, William L. Matier
  • 2-Alkynyl-5-indanyloxyacetic acids
    Patent number: 4247715
    Abstract: Indanyloxy compounds having 2-alkynyl substituents which exhibit diuretic, saluretic, and uricosuric activity are described. The compounds are obtained according to a process involving selective etherification of a 5-hydroxyindanone followed by alkynylation with a silylated alkynyl bromide to provide novel silylated intermediates which are hydrolyzed to indanyloxy compounds such as (6,7-dichloro-1-oxo-2-phenyl-2-propargyl-5-indanyloxy)acetic acid.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: January 27, 1981
    Assignee: Mead Johnson & Company
    Inventors: Porter C. Johnson, William L. Matier