Patents by Inventor Grietinus R. L. Kamps

Grietinus R. L. Kamps 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).

  • Gas filter
    Patent number: 4272267
    Abstract: A gas filter comprising a square frame and an interchangeable filter package containing a filter web of a folded zig-zag configuration forming a plurality of proximate filter pockets received on a support grid mounted on the frame and having a shape complementary to the folds of the filter web.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: June 9, 1981
    Assignee: American Air Filter Company, Inc.
    Inventors: Grietinus R. L. Kamps, Jan S. P. Moltzer, Pieter J. Platteeuw