Patents by Inventor Douglas E. Herrick

Douglas E. Herrick 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).

  • Oil-sorbing filter element
    Patent number: 7297267
    Abstract: An oil-sorbing filter element for removing oil from an aqueous flow such as the bilge water of a watercraft. The element includes a first stage which is formed of a consolidated permeable mass of a oleophilic polymeric material such as styrenic mid-block copolymer.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: November 20, 2007
    Assignee: Parker-Hannifin Corporation
    Inventors: Donald R Denton, Douglas E. Herrick, Geary Lane, Kirby S. Mohr
  • Oil-sorbing filter element
    Publication number: 20040178150
    Abstract: An oil-sorbing filter element for removing oil from an aqueous flow such as the bilge water of a watercraft. The element includes a first stage which is formed of a consolidated. permeable mass of a oleophilic polymeric material such as styrenic mid-block copolymer.
    Type: Application
    Filed: February 10, 2004
    Publication date: September 16, 2004
    Inventors: Donald R. Denton, Douglas E. Herrick, Geary Lane, Kirby S. Mohr