Patents by Inventor Joachim E. Freudewald

Joachim E. Freudewald 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).

  • Fragrance compositions containing 2,4,6-tribromo-3-methylanisole methylanisole
    Patent number: 4755503
    Abstract: Fragrance compositions prepared by adding thereto an olfactorily effective amount of substantially pure 2,4,6-tribromo-3-methylanisole are disclosed.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: July 5, 1988
    Assignee: Givaudan Corporation
    Inventors: Joachim E. Freudewald, Kenneth L. Purzycki, Joseph A. Virgilio
  • Process for the preparation of 2,4,5-trichlorophenol under acidic conditions
    Patent number: 4564714
    Abstract: A novel process for the preparation of 2,4,5-trichlorophenol which comprises selectively chlorinating 2,5-dichlorophenol under acidic conditions.
    Type: Grant
    Filed: October 30, 1984
    Date of Patent: January 14, 1986
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Joachim E. Freudewald
  • Iodopropargyl pyridyl and picolinyl ethers and thioethers as paint fungicides
    Patent number: 4220577
    Abstract: Novel iodopropargyl pyridyl and picolinyl ethers and thioethers are effective antifungal agents. They find special utility in paint for protecting finished paint films from fungal attack.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: September 2, 1980
    Assignee: Givaudan Corporation
    Inventors: Harold A. Brandman, Joachim E. Freudewald, Milton Manowitz, Edward J. Nikawitz, Frederick H. Sharpell, Jr.
  • Process for the purification of crude 2,4,5-trichlorophenol
    Patent number: 4216342
    Abstract: A novel process for the purification of 2,4,5-trichlorophenol which comprises selectively reacting the major impurities with formaldehyde.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: August 5, 1980
    Assignee: Givaudan Corporation
    Inventors: Joseph A. Virgilio, Joachim E. Freudewald
  • Iodopropargyl pyridyl and picolinyl ethers and thioethers as paint fungicides
    Patent number: 4170704
    Abstract: Novel iodopropargyl pyridyl and picolinyl ethers and thioethers are effective antifungal agents. They find special utility in paint for protecting finished paint films from fungal attack.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: October 9, 1979
    Assignee: Givaudan Corporation
    Inventors: Harold A. Brandman, Joachim E. Freudewald, Milton Manowitz, Edward J. Nikawitz, Frederick H. Sharpell, Jr.