Patents by Inventor Emanuel Heilweil

Emanuel Heilweil 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).

  • Heterocyclic formamidines useful as ultraviolet light absorbers
    Patent number: 5436338
    Abstract: Novel substituted heterocyclic formamidines are useful as ultraviolet light absorbers, the formamidines having the formula ##STR1## wherein: Ar represents a 2-thiazolyl, 2-pyridyl, 2- 4,6-dimethyl) pyrmidyl or a 4-(2-methyl)quinolyl group, and,R represents a phenyl group or an alkyl group of from one to eight carbon atoms.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: July 25, 1995
    Assignee: Givaudan-Roure Corporation
    Inventors: Joseph A. Virgilio, Emanuel Heilweil, Isaac D. Cohen
  • Heterocyclic formamidines useful as ultraviolet light absorbers
    Patent number: 5243055
    Abstract: Novel substituted heterocyclic formamidines are useful as ultraviolet light absorbers, the formamidines having the formula ##STR1## wherein: Ar represents a 2-thiazolyl, 2-pyridyl, 2-(4,6-dimethyl) pyrimidyl or a 4-(2-methyl)quinolyl group, and,R represents a phenyl group or an alkyl group of from one to eight carbon atoms.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: September 7, 1993
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Emanuel Heilweil, Isaac D. Cohen
  • 2-alkyl-3-haloisothiazol-3-thione
    Patent number: 4841063
    Abstract: This disclosure relates to a novel class of 2-alkyl-3-haloisothiazolium salts. These salts have been found to be useful in controlling the growth of bacteria and fungi. They have also been found to be useful intermediates in the preparation of novel and known antibacterial and antifungal compounds.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: June 20, 1989
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Milton Manowitz, Emanuel Heilweil
  • 2-Alkyl-3-haloisothiazolium salts and their derivatives
    Patent number: 4508908
    Abstract: This disclosure relates to a novel class of 2-alkyl-3-haloisothiazolium salts. These salts have been found to be useful in controlling the growth of bacteria and fungi. They have also been found to be useful intermediates in the preparation of novel and known antibacterial and antifungal compounds.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: April 2, 1985
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Milton Manowitz, Emanuel Heilweil
  • 3-Methyl-1-(2,3,4-and 2,4,4-trimethyl-1-cyclopentylidene) pent-2-en-4-one and isomers, and perfume compositions thereof
    Patent number: 4477683
    Abstract: There is provided novel ketones of the structure: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent hydrogen or methyl provided that:R.sub.1 is not the same as R.sub.2 andR.sub.3 is not the same as R.sub.4 ;and fragrance compositions containing them.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: October 16, 1984
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Emanuel Heilweil
  • 3-Dicyanomethylene-4-isothiazolines
    Patent number: 4328347
    Abstract: This disclosure relates to a novel class of 2-alkyl-3-haloisothiazolium salts. These salts have been found to be useful in controlling the growth of bacteria and fungi. They have also been found to be useful intermediates in the preparation of novel and known antibacterial and antifungal compounds.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: May 4, 1982
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Milton Manowitz, Emanuel Heilweil
  • 2-Alkyl-3-haloisothiazolium salts and their derivatives
    Patent number: 4281136
    Abstract: This disclosure relates to a novel class of 2-alkyl-3-haloisothiazolium salts. These salts have been found to be useful in controlling the growth of bacteria and fungi. They have also been found to be useful intermediates in the preparation of novel and known antibacterial and antifungal compounds.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: July 28, 1981
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Milton Manowitz, Emanuel Heilweil
  • 3-Alkoxy-2-alkylisothiazolium salts and their derivatives
    Patent number: 4262127
    Abstract: This disclosure relates to a novel class of 3-alkoxy-2-alkylisothiazolium salts. These salts have been found to be useful in controlling the growth of bacteria and fungi. They have also been found to be useful intermediates in the preparation of known antibacterial and antifungal compounds.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: April 14, 1981
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Milton Manowitz, Emanuel Heilweil
  • Process for the preparation of substituted dihydrocinnamaldehydes via novel .beta.-chlorocinnamaldehydes
    Patent number: 4182730
    Abstract: A novel process for producing a substituted .alpha.-alkyldihydrocinnamaldehydes from the corresponding alkylphenone via a novel .alpha.-alkyl-.beta.-chlorocinnamaldehyde.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: January 8, 1980
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Thomas F. Wood, Emanuel Heilweil, Harold A. Brandman