Patents by Inventor J. Gustav Schulz

J. Gustav Schulz 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).

  • Bis-quinizarin compounds
    Patent number: 4313887
    Abstract: Bis-quinizarin compounds are disclosed. They have the structure: ##STR1## where X is ##STR2## --CF.sub.2 --, or a bond.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: February 2, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Clarence D. Bertino, Robert W. Hill, J. Gustav Schulz
  • Novel single cell protein substrate
    Patent number: 4302539
    Abstract: An acetone-insoluble organic acid product from the nitric oxidation of lignite is useful in growing single cell protein.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: November 24, 1981
    Assignee: Gulf Research & Development Company
    Inventors: J. Gustav Schulz, Pamela M. Bunting
  • Aromatic anhydrides
    Patent number: 4150040
    Abstract: A mixture of polycyclic aromatic polycarboxylic anhydrides carrying nuclear nitro groups that is substantially soluble in acetone but substantially insoluble in water and a process for preparing the mixture.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: April 17, 1979
    Assignee: Gulf Research & Development Company
    Inventor: J. Gustav Schulz
  • Foamable resinous polymer compositions containing acid mixtures
    Patent number: 4101469
    Abstract: A foamable polymer composition comprising a resinous polymer and a mixture of polycyclic aromatic polycarboxylic acids carrying nuclear nitro groups that is substantially soluble in acetone but substantially insoluble in water obtained as a result of the nitric acid oxidation of a carbonaceous material, such as coal.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: July 18, 1978
    Assignee: Gulf Research & Development Company
    Inventors: J. Gustav Schulz, Edward T. Sabourin
  • Organic acids and process for preparing same
    Patent number: 4052448
    Abstract: A mixture of polycyclic aromatic polycarboxylic acids carrying nuclear nitro groups that is substantially soluble in acetone but substantially insoluble in water and a process for preparing the mixture.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: October 4, 1977
    Assignee: Gulf Research & Development Company
    Inventors: J. Gustav Schulz, Edward T. Sabourin