TREA

Margit Hofmann

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  • Gorxheimertal, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cassette filter
    • Patent number 6,361,577
    • Issue date Mar 26, 2002
    • Firma Carl Freudenberg
    • Dieter Unrath
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method for producing a tubular according filter element
    • Patent number 6,352,665
    • Issue date Mar 5, 2002
    • Firma Carl Freudenberg
    • Dieter Unrath
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Cartridge filter with frame
    • Patent number 6,059,966
    • Issue date May 9, 2000
    • Firma Carl Fredenberg
    • Andreas Brandhofer
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Tubular accordion filter element
    • Patent number 6,056,799
    • Issue date May 2, 2000
    • Freudenberg; Firma Carl
    • Dieter Unrath
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Pocket filter
    • Patent number 5,695,535
    • Issue date Dec 9, 1997
    • Carl Freudenberg
    • Dieter Hintenlang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents