Patents Assigned to Tetra Werke Dr. rer. nat. U. Baensch GmbH
  • Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fish
    Patent number: 5719189
    Abstract: The present invention provides a medicinal feed for fish, which comprises a triphenylmethane derivative or a combination of triphenylmethane derivatives alone or in combination with at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: February 17, 1998
    Assignee: Tetra Werke Dr. rer. nat. U. Baensch GmbH
    Inventors: Hartmut Schmidt, Gunter Ritter
  • Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fish
    Patent number: 5712290
    Abstract: The present invention provides a medicinal feed for fish, which comprises at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: January 27, 1998
    Assignee: Tetra Werke Dr. rer. nat. U. Baensch GmbH
    Inventors: Hartmut Schmidt, Gunter Ritter
  • Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fish
    Patent number: 5670513
    Abstract: The present invention provides a medicinal feed for fish, which comprises a triphenylmethane derivative or a combination of triphenylmethane derivatives alone or in combination with at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: September 23, 1997
    Assignee: Tetra Werke Dr. Rer. Nat. U. Baensch GmbH
    Inventors: Hartmut Schmidt, Gunter Ritter
  • Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fish
    Patent number: 5618847
    Abstract: The present invention provides a medicinal feed for fish, which comprises a triphenylmethane derivative or a combination of triphenylmethane derivatives alone or in combination with at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: April 8, 1997
    Assignee: Tetra Werke Dr. rer. nat. U. Baensch GmbH
    Inventors: Hartmut Schmidt, G unter Ritter
  • Agent for the elimination of active chlorine compounds from water
    Patent number: 4786434
    Abstract: An agent for and the method for its use in the elimination of active chlorine compounds from water comprises a hydroxysulfinate adduct of an aliphatic, aromatic, or heterocyclic mono- or dialdehyde or an ammonia adduct thereof. The agent is used alone or in combination with the corresponding aldehyde.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: November 22, 1988
    Assignee: Tetra Werke Dr. rer. nat. U. Baensch GmbH
    Inventor: Ritter Gunter