TREA

Steven J. St. Mary

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  • St. Paul, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Glass microbead filter and method of filtering
    • Patent number 5,366,632
    • Issue date Nov 22, 1994
    • Minnesota Mining and Manufacturing Company
    • William V. Balsimo
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method of preparing composite chromatographic article
    • Patent number 4,971,736
    • Issue date Nov 20, 1990
    • Minnesota Mining and Manufacturing Company
    • Donald F. Hagen
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Composite chromatographic article
    • Patent number 4,906,378
    • Issue date Mar 6, 1990
    • Minnesota Mining and Manufacturing Company
    • Donald F. Hagen
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Composite chromatographic article
    • Patent number 4,810,381
    • Issue date Mar 7, 1989
    • Minnesota Mining and Manufacturing Company
    • Donald F. Hagen
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL