Patents by Inventor John R. Jarvis

John R. Jarvis 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: 5264335
    Abstract: A color photographic recording material is described which comprises a silver halide emulsion layer containing a coupler compound capable of releasing a development accelerator or fogging agent and which material also contains silver halide grains which are more developable than the grains in the silver halide emulsion layer.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: November 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: Peter J. Twist, John R. Jarvis
  • Patent number: 4103520
    Abstract: An automated laundry system is disclosed which includes a washer operative to advance through a plurality of operating cycle stages, an injector having a plurality of liquid additive reservoirs and associated timed control valves operative to selectively inject liquid additives into the washer, and an adaptor connected to the washer and injector for controlling injection of the additives into the washer in predetermined sequence throughout each operating cycle of the washer. The adaptor establishes sequential program signals to the injector for a washer which does not have a built-in programmed signal producing means for the injector.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: August 1, 1978
    Assignee: Ald, Inc.
    Inventors: John R. Jarvis, Eldon W. Brown