Patents by Inventor Heinz W. Hahn

Heinz W. Hahn 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).

  • Disposable, one-piece filter unit
    Patent number: 4357240
    Abstract: A disposable filtration unit wherein the body of the unit is a unitary, one-piece molded structure having an internal flange for dividing the unit into an upper and lower chambers, the flange also providing means for supporting the filter medium.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: November 2, 1982
    Assignee: Sybron Corporation
    Inventors: Ravinder C. Mehra, Heinz W. Hahn, Raj K. Aggarwal
  • Test tube rack
    Patent number: D257390
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: October 14, 1980
    Assignee: Sybron Corporation
    Inventors: Heinz W. Hahn, Ravinder C. Mehra
  • Unitary, disposable filter unit
    Patent number: D270947
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: October 11, 1983
    Assignee: Sybron Corporation
    Inventors: Ravinder C. Mehra, Heinz W. Hahn, Raj K. Aggarwal