Patents by Inventor Horst Prinzbach

Horst Prinzbach 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).

  • Diepoxycyclohexane derivatives
    Patent number: 4442299
    Abstract: New bromoepoxy-cyclohexenes and their derivatives, which are starting compounds for units used to synthesize natural compounds, e.g. cyclitols or aminocyclitols.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: April 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Prinzbach, Reinhard Schwesinger, Reinhold Keller
  • Manufacture of isomeric 1,4-dibromo-epoxy-cyclohexenes
    Patent number: 4116984
    Abstract: The manufacture of pure isomeric 1,4-dibromo-epoxy-cyclohexenes and their derivatives, which are starting compounds for units used to synthesize neutral compounds, e.g. cyclitols or aminocyclitols.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: September 26, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Prinzbach, Reinhard Schwesinger
  • 1,3-Didesoxy-1,3-[N,N'-(1',2',3',4'-tetrahydro-1',4'-dio xo)-phthalazino]-inositol compounds
    Patent number: 4065454
    Abstract: The reaction product obtained from cis-benzenetrioxide, hydrazine and phthalic anhydride, and its manufacture. The compounds are intermediates for stereospecific syntheses of aminocyclitols.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: December 27, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Koenig, Horst Prinzbach, Reinhard Schwesinger