Patents by Inventor Philip L. Hapner

Philip L. Hapner 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).

  • Patent number: 8567431
    Abstract: A check valve system including a plumbing assembly and a check valve assembly. The plumbing assembly has at least three portals including a first portal, a second portal and a third portal. The check valve assembly is positioned to block a fluid flow entering the second portal from flowing out of the first portal. The check valve assembly includes a securing mechanism positioned in the third portal.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: October 29, 2013
    Inventor: Philip L. Hapner
  • Publication number: 20130061957
    Abstract: A check valve system including a plumbing assembly and a check valve assembly. The plumbing assembly has at least three portals including a first portal, a second portal and a third portal. The check valve assembly is positioned to block a fluid flow entering the second portal from flowing out of the first portal. The check valve assembly includes a securing mechanism positioned in the third portal.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Inventor: Philip L. Hapner