Patents by Inventor Dennis P. Peterson

Dennis P. Peterson 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).

  • Quick release retention of work pieces
    Patent number: 4690316
    Abstract: Method and apparatus for providing quick release retention of work pieces. A receptor that is attachable to a user includes a mechanism for attaching the work piece to the receptor by contact. The receptor is provided with a guard structure to protect against accidental release, without inhibiting quick release when desired.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: September 1, 1987
    Inventor: Dennis P. Peterson
  • Liquid chromatographic method and post-column effluent treatment for detection and separation at optimized pH
    Patent number: 4451374
    Abstract: Reagent is added to liquid chromatographic effluent to increase detection sensitivity of sample bands, or to enhance sensitivity with respect to interfering bands which overlap sample bands of interest, using one or more hollow fibers immersed within mobile reagent which is permeated through the walls of the fibers and, thus, ultimately diffused into the column effluent.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: May 29, 1984
    Assignee: The Dow Chemical Company
    Inventors: Dennis P. Peterson, James C. Davis