TREA

John R. Ward

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

  • Information Patent Grant

    Printing device
    • Patent number 4,052,935
    • Issue date Oct 11, 1977
    • Minnesota Mining and Manufacturing Company
    • John R. Ward
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Taping device and method of taping
    • Patent number 4,052,240
    • Issue date Oct 4, 1977
    • Minnesota Mining and Manufacturing Company
    • Robert A. Luhman
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    System and device for inflating and sealing air inflated cushioning...
    • Patent number 4,017,351
    • Issue date Apr 12, 1977
    • Minnesota Mining and Manufacturing Company
    • Curtis L. Larson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    System for inflation and sealing of air cushions
    • Patent number 3,938,298
    • Issue date Feb 17, 1976
    • Minnesota Mining and Manufacturing Company
    • Robert A. Luhman
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL