TREA

Robert W. Fritts

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  • Afton, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Slide copper system
    • Patent number 6,711,347
    • Issue date Mar 23, 2004
    • Robert W. Fritts
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Fluorescent backlit display
    • Patent number 5,658,068
    • Issue date Aug 19, 1997
    • Robert W. Fritts
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Fluorescent backlit displays or the like
    • Patent number 5,523,930
    • Issue date Jun 4, 1996
    • Robert W. Fritts
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Table top backlit display
    • Patent number 5,461,808
    • Issue date Oct 31, 1995
    • Robert W. Fritts
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Light leveling means for fluorescent backlit displays or the like
    • Patent number 5,282,117
    • Issue date Jan 25, 1994
    • Robert W. Fritts
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Quick-erect portable display structure
    • Patent number 4,325,197
    • Issue date Apr 20, 1982
    • Minnesota Mining and Manufacturing Company
    • David J. Achten
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Flexible copy section
    • Patent number 3,987,567
    • Issue date Oct 26, 1976
    • Minnesota Mining and Manufacturing Company
    • Robert W. Fritts
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Sign structure
    • Patent number 3,977,111
    • Issue date Aug 31, 1976
    • Minnesota Mining and Manufacturing Company
    • Robert W. Fritts
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS