Patents by Inventor Edward R. Lau

Edward R. Lau 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).

  • Adjustable suspension systems for ceilings
    Patent number: 3998020
    Abstract: An apparatus is disclosed for leveling suspended ceilings while attaching them to supporting structures. The apparatus has an upper body portion having a backplate, a top plate, and a side plate with each of the plates lying in a plane substantially perpendicular to the plane of the other two plates and each of the plates having means for connection to a supporting structure. A flange extends downwardly from one of the plates and includes means for engaging the supporting portion of a suspended ceiling.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: December 21, 1976
    Assignee: United States Gypsum Company
    Inventors: Albert F. Kuhr, Edward R. Lau, Harold Bartels