TREA

Walter F. Ottmann

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  • Duluth, GA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable parts washer
    • Patent number 11,371,178
    • Issue date Jun 28, 2022
    • CRC Industries, Inc.
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Grant

    Method for cleaning in a portable parts washer
    • Patent number 10,618,081
    • Issue date Apr 14, 2020
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Grant

    Method for cleaning mechanical parts using a portable parts washer
    • Patent number 9,802,228
    • Issue date Oct 31, 2017
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Grant

    Parts washer
    • Patent number D747567
    • Issue date Jan 12, 2016
    • Chemfree Corporation
    • Francis A. Marks
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Portable parts washer
    • Patent number 9,132,455
    • Issue date Sep 15, 2015
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Grant

    Parts washer
    • Patent number D735957
    • Issue date Aug 4, 2015
    • Chemfree Corporation
    • Francis A. Marks
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Parts washer
    • Patent number D733979
    • Issue date Jul 7, 2015
    • Chemfree Corporation
    • Francis A. Marks
    • D32 - Washing, cleaning, or drying machine

Patents Applicationslast 30 patents

  • Information Patent Application

    Portable Parts Washer
    • Publication number 20200215585
    • Publication date Jul 9, 2020
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Application

    Portable Parts Washer
    • Publication number 20180104723
    • Publication date Apr 19, 2018
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Application

    PORTABLE PARTS WASHER
    • Publication number 20150360260
    • Publication date Dec 17, 2015
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING
  • Information Patent Application

    PORTABLE PARTS WASHER
    • Publication number 20140116479
    • Publication date May 1, 2014
    • Chemfree Corporation
    • Francis A. Marks
    • B08 - CLEANING