Patents by Inventor Gilbert H. Berezin

Gilbert H. Berezin 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).

  • Antihypertensive polyhalohydroxylisopropyl phenylalkanoic and phenylalkenoic acids, amides and esters and intermediates thereto
    Patent number: 4727180
    Abstract: Polyhalohydroxyisopropyl phenylalkanoic and phenylalkenoic acids, amides, and esters, such as methyl 2-methoxy-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]benzenepro panoate, are useful as antihypertensive agents.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: February 23, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul E. Aldrich, Gilbert H. Berezin
  • Antihypertensive polyfluoroisopropyl tricyclic carbostyrils
    Patent number: 4322417
    Abstract: Polyfluorohydroxyisopropyl tricyclic carbostyrils, such as 2,3-dihydro-7-methyl-9-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl ]-5H-[1,4]thiazino[2,3,4-ij]-quinolin-5-one, useful as antihypertensive agents.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: March 30, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul E. Aldrich, Gilbert H. Berezin
  • Polyfluorohydroxyisopropyl-heterocyclic compounds
    Patent number: 4251659
    Abstract: Polyfluorohydroxyisopropyl: -indolines, -tetrahydroquinolines, and -benzazepines, such a .alpha.,.alpha.-bis(trifluoromethyl)-1,2,3,4-tetrahydroquinoline-6-methano l, useful as intermediates for antihypertensives.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: February 17, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul E. Aldrich, Gilbert H. Berezin
  • Antihypertensive polyfluorohydroxyisopropyl bicyclic and tricyclic carbostyrils
    Patent number: 4251534
    Abstract: Polyfluorohydroxyisopropyl bicyclic and tricyclic carbostyrils, such as 2,3-dihydro-7-methyl-9-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl ]-5H-pyrido[1,2,3-de]-1,4-benzoxazin-5-one, useful as antihypertensive agents.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: February 17, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Aldrich Paul E., Gilbert H. Berezin
  • Antihypertensive polyfluorohydroxyisopropyl bicyclic and tricyclic carbostyrils
    Patent number: 4218448
    Abstract: Polyfluorohydroxyisopropyl bicyclic and tricyclic carbostyrils, such as 1,2-dihydro-8-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]-6-methy l-4H-pyrrolo-[3,2,1-ij]quinolin-7-one, useful as antihypertensive agents.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: August 19, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul E. Aldrich, Gilbert H. Berezin
  • 1-Tertiary-alkyl-3-(substituted cyclohexenyl)ureas as antihypertensive agents
    Patent number: 4002767
    Abstract: 1-Tertiary-alkyl-3-(substituted cyclohexenyl)ureas that exhibit antihypertensive activity in warm-blooded animals. A representative compound is 1-tert-butyl-3-(3-oxo-1-cyclohexen-1-yl)urea.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: January 11, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul E. Aldrich, Gilbert H. Berezin, Bruce I. Dittmar