TREA

John Edward Leddy

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  • Amherst, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary drum vacuum filter
    • Patent number 8,137,568
    • Issue date Mar 20, 2012
    • Andritz Ltd.
    • Paul Norman Rouillard
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Lightweight, anti-rewet, modular style disc sector
    • Patent number 5,242,590
    • Issue date Sep 7, 1993
    • Ingersoll-Rand Company
    • William F. Thomson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Rotary drum vacuum filter
    • Publication number 20070170108
    • Publication date Jul 26, 2007
    • Paul Norman Rouillard
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL