Patents by Inventor Arnold William Field

Arnold William Field 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).

  • Pigment preparation
    Patent number: 4089699
    Abstract: A pigment composition comprising pigment and at least 5% by weight based on the weight of composition of a complex formed from one or more non ionic polyether surfactants based on ethylene oxide and a polymeric carboxylic acid having a molecular weight of at least 1500.
    Type: Grant
    Filed: October 21, 1975
    Date of Patent: May 16, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: John Bryce Blackburn, Arnold William Field