Patents by Inventor David A. Woelkers

David A. Woelkers 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).

  • Upflow surface water runoff filtration system
    Patent number: 7005060
    Abstract: A surface water runoff filtration device comprises an intake which is adapted to receive storm water and other surface water runoff. The surface water runoff flows from the surface through the intake to a point below the filter media, and then up toward the surface through the filter media. This device may be used in both catch basin storm drains and inline drains.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: February 28, 2006
    Assignee: StormTrain LLC
    Inventors: Robert E. Pitt, David A. Woelkers, Jeffrey K. Suhr
  • Upflow surface water runoff filtration system
    Publication number: 20040251185
    Abstract: A surface water runoff filtration device comprises an intake which is adapted to receive storm water and other surface water runoff. The surface water runoff flows from the surface through the intake to a point below the filter media, and then up toward the surface through the filter media. This device may be used in both catch basin storm drains and inline drains.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventors: Robert E. Pitt, David A. Woelkers, Jeffrey K. Suhr