Patents by Inventor Robert H. Boschan

Robert H. Boschan 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).

  • Process for preparing ethynylated benzoic acid derivatives
    Patent number: 4465833
    Abstract: A novel ethynylation process is disclosed which provides an expanded series of novel ethylnyl-terminated aromatic compounds having base sensitive substituents and which facilitates the economic preparation of prior art ethynyl-substituted aromatic compounds.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: August 14, 1984
    Assignees: Hughes Aircraft Company, Hughes Aircraft Company
    Inventors: Kreisler S. Y. Lau, Robert H. Boschan
  • Process for making nitroarylacetylenes and nitroarylaldehydes
    Patent number: 4125563
    Abstract: I have discovered a process for making nitroarylacetylenes and aminoarylacetylenes in which the aryl radical is a phenylene radical or a diphenylene radical. With the exception of p-aminophenylacetylene, the compounds produced by this process are novel. The compounds are all useful as intermediates in the preparation of addition polymers utilizing a polymeric backbone of polyimides. The addition polymers are useful as adhesives and as laminating resins.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: November 14, 1978
    Assignee: Hughes Aircraft Company
    Inventor: Robert H. Boschan