Patents by Inventor William L. Chambers

William L. Chambers 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).

  • Patent number: 4187103
    Abstract: A photoconductive copy sheet suitable as an intermediate in an electrographic process, the copy sheet containing photoconductive titanium dioxide and decay retarder in the form of an organic acid or salt thereof. Preferably, the titanium dioxide is of a type having a characteristic relaxation time of less than 9 minutes whereby the copy sheet is capable of producing at least 5 and as many as 100 copies per exposure.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: February 5, 1980
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: William L. Chambers