James A. Severson

Person

  • Hastings, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Filter construction apparatus and method

    • Patent number 6,368,388
    • Issue date Apr 9, 2002
    • Donaldson Company Inc.
    • Kristofer Kosmider
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL