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Harold H. Hopfe

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  • Longmeadow, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyvinyl butyral sheet
    • Patent number 6,093,471
    • Issue date Jul 25, 2000
    • Solutia Inc.
    • Harold H. Hopfe
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Method of preparing prelaminate using rough-surfaced interlayer
    • Patent number 6,077,374
    • Issue date Jun 20, 2000
    • Monsanto
    • Harold Herbert Hopfe
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rough-surfaced polyvinyl butyral sheet and method of forming same
    • Patent number 5,595,818
    • Issue date Jan 21, 1997
    • Monsanto Company
    • Harold H. Hopfe
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Rough-surfaced interlayer
    • Patent number 5,455,103
    • Issue date Oct 3, 1995
    • Monsanto Company
    • John C. Hoagland
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Rough-surfaced interlayer
    • Patent number 5,425,977
    • Issue date Jun 20, 1995
    • Monsanto Company
    • Harold H. Hopfe
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Wave energy desalinization
    • Patent number 4,335,576
    • Issue date Jun 22, 1982
    • Harold H. Hopfe
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Extrusion die with melt flow control
    • Patent number 4,332,543
    • Issue date Jun 1, 1982
    • Monsanto Company
    • John L. Fulton
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Sheet stress relaxation
    • Patent number 4,329,315
    • Issue date May 11, 1982
    • Monsanto Company
    • Van P. Brower
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Doctor blade holder
    • Patent number 4,241,691
    • Issue date Dec 30, 1980
    • Monsanto Company
    • Harold H. Hopfe
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Wave energy module 2
    • Patent number 4,204,406
    • Issue date May 27, 1980
    • Harold H. Hopfe
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...