Patents by Inventor Douglas Alan Perry

Douglas Alan Perry 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).

  • Method of making a flow cell for light absorption measurement of small volume samples
    Patent number: 6199257
    Abstract: A process for making a flow cell having an internal flow passage of a material having a refractive index less than that of water or having the internal walls of the flow passage coated or otherwise covered with such a material is provided. The flow cell so produced substantially totally internally reflects light along the cell bore.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: March 13, 2001
    Assignee: Thermo Separation Products, Inc.
    Inventors: Miner Nelson Munk, Douglas Alan Perry, Brian Robert Said