TREA

Roland Wiederhold

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  • Steinhelm/Murr, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter assembly
    • Patent number 6,224,758
    • Issue date May 1, 2001
    • Filterwerk Mann & Hummel GmbH
    • Herbert Jainek
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Filter with safety element for filtering engine oil
    • Patent number 6,177,003
    • Issue date Jan 23, 2001
    • Filterwerk Mann & Hummel GmbH
    • Herbert Jainek
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Liquid filter
    • Patent number 5,888,384
    • Issue date Mar 30, 1999
    • Filterwerk Mann & Hummel GmbH
    • Roland Wiederhold
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS