Patents by Inventor Martin R. Spatz

Martin R. Spatz 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).

  • Trithiophosphite stabilized maleic anhydride
    Patent number: 3998854
    Abstract: This invention relates to the heat stabilization of maleic anhydride with trithiophosphites. More particularly, this invention relates to the stabilization of maleic anhydride with trialkyl trithiophosphites.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: December 21, 1976
    Assignee: Standard Oil Company (Indiana)
    Inventors: Cecelia Samans, Martin R. Spatz
  • Stannous stabilization of maleic anhydride
    Patent number: 3985776
    Abstract: Stabilization of maleic anhydride with stannous compounds, such as stannous chloride and stannous salts of aliphatic monocarboxylic acids.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: October 12, 1976
    Assignee: Standard Oil Company (Indiana)
    Inventors: Cecelia Samans, Martin R. Spatz