Patents by Inventor Herbert J. Fish

Herbert J. Fish 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).

  • Thermal diazotype sheets
    Patent number: 4230789
    Abstract: Thermal diazotype sheets having substituted imidazoline acid-neutralizers are shown to have shelf stability and short development times.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: October 28, 1980
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Herbert J. Fish