Patents by Inventor Amos C. Warner

Amos C. Warner 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).

  • Carbon black
    Patent number: 3959008
    Abstract: Oxygenated furnace black products are disclosed which have a particle size of at least 15 millimicrons, a dibutylphthalate absorption (DBP) not exceeding 120 c.c./100 gms., a nitrogen surface area of at least 450 m.sup.2 /gm., and an oxygen content of at least 4 weight percent.These products can be produced by treating a furnace carbon black feedstock with an oxidizing agent, such as nitric acid, in order to substantially increase the volatile and the oxygen content of the black.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: May 25, 1976
    Assignee: Cities Service Company
    Inventors: Amos C. Warner, Chalmes V. Williams