Patents by Inventor Helmut H. Mrozik

Helmut H. Mrozik 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).

  • Substituted benzenedisulfonamides as anthelmintics
    Patent number: 4062952
    Abstract: Substituted benzenedisulfonamides are disclosed, which are active anthelmintic agents being particularly useful against fascioliasis in sheep and cattle. Specifically the active compounds are 4-amino-1,3-benzenedisulfonamide compounds substituted at the 6-position with certain alkyl groups. Compositions and methods containing the novel substituted benzenedisulfonamides for use in anthelmintic therapy, particularly against liver fluke are also disclosed.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: December 13, 1977
    Assignee: Merck & Co., Inc.
    Inventor: Helmut H. Mrozik
  • Substituted benzenesulfonamides as anthelmintics
    Patent number: 4005199
    Abstract: This invention relates to a novel method for the treatment of parasitic diseases and the compositions used in said treatment. More specifically this invention relates to benzenesulfonamides substituted at the 3, 4, and 5 positions of the benzene ring and to the use of such compounds for the treatment of mature and immature liver fluke infections.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 25, 1977
    Assignee: Merck & Co., Inc.
    Inventor: Helmut H. Mrozik
  • Benzenedisulfonamides as anthelmintic agents
    Patent number: 4001406
    Abstract: Haloalkyl benzenedisulfonamides are employed in the treatment of both mature and immature liver fluke infections. They are orally or parenterally administered to host animals in suitable compositions.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: January 4, 1977
    Assignee: Merck & Co., Inc.
    Inventor: Helmut H. Mrozik
  • Substituted benzenesulfonamides as anthelmintics
    Patent number: 3987199
    Abstract: This invention relates to a novel method for the treatment of parasitic diseases and the compositions used in said treatment. More specifically this invention relates to benzenesulfonamides substituted at the 3, 4, and 5 positions of the benzene ring and to the use of such compounds for the treatment of mature and immature liver fluke infections.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: October 19, 1976
    Assignee: Merck & Co., Inc.
    Inventor: Helmut H. Mrozik
  • 4-Nitro-5-cyanoimidazoles as coccidiostats
    Patent number: 3968228
    Abstract: 4-Nitro-5-cyanoimidazoles substituted with a 1-loweralkyl group and variously substituted at the 2-position are useful as antiparasitic agents particularly as coccidiostats. The 4-nitro-5-cyanoimidazole coccidiostats are included in compositions useful for administration to poultry as treatment for coccidiosis.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: July 6, 1976
    Assignee: Merck & Co., Inc.
    Inventors: Dale R. Hoff, Peter Kulsa, Helmut H. Mrozik, Edward F. Rogers
  • Anthelmintic substituted sulfonamide derivatives
    Patent number: 3953492
    Abstract: Novel substituted benzenesulfonamides are disclosed in which the sulfonamido nitrogen is substituted with various amino or alkoxy alkylene groups. The compounds are active anthelmintic agents and are particularly active against mature and immature fasciola. Processes for their preparation utilizing novel intermediates as well as compositions and methods for the treatment of helminthiasis are also disclosed.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: April 27, 1976
    Assignee: Merck & Co., Inc.
    Inventor: Helmut H. Mrozik