Patents by Inventor Michael A. Shestock

Michael A. Shestock 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).

  • Transmittance cell for spectrophotometer
    Patent number: 5774209
    Abstract: A hand-held portable spectrophotometer that is contained in an enclosed housing and includes a source of illumination and a spectrograph, along with a transmittance cell and a reflectance cell. The transmittance cell is adapted to receive therein either a solid sample or a liquid sample through an access door in the top wall of the housing.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: June 30, 1998
    Assignee: Spectronic Instruments, Inc.
    Inventor: Michael A. Shestock
  • Spectrophotometer
    Patent number: D392906
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: March 31, 1998
    Assignee: Spectronic Instruments, Inc.
    Inventors: Michael A. Shestock, Gary R. Greene, Jason M. Avery