Patents by Inventor Dezso Ambrus

Dezso Ambrus 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).

  • 2,2-Dimethyl-1,2-dihydroquinoline derivatives useful as antioxidants, a process for the preparation thereof and mixtures containing them
    Patent number: 4490394
    Abstract: (2,2-Dimethyl-1,2-dihydroquinoline-4-yl)-methylsulfonic acid and the ammonium, alkali metal, alkaline earth metal and zinc salts thereof are disclosed. The new compound and its salts are superior antioxidants useful to stabilize animal feedstuffs containing biologically active substances which are sensitive to oxidation.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: December 25, 1984
    Assignee: Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara R.T.
    Inventors: Dezso Ambrus, Tamas Szabolcsi, Istvan Hutas
  • 2,2-Dimethyl-1,2-dihydroquinoline derivatives useful as antioxidants
    Patent number: 4363910
    Abstract: (2,2-Dimethyl-1,2-dihydroquinoline-4-yl)-methylsulfonic acid and the ammonium, alkali metal, alkali earth metal and zinc salts thereof are disclosed. The new compound and its salts are superior antioxidants useful to stabilize animal feedstuffs containing biologically active substances which are sensitive to oxidation.
    Type: Grant
    Filed: February 15, 1980
    Date of Patent: December 14, 1982
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Dezso Ambrus, Tamas Szabolcsi, Istvan Hutas