TREA

Paul A. S. Charles

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  • Rockford, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of generating involute tooth forms with a milling cutter
    • Patent number 4,565,474
    • Issue date Jan 21, 1986
    • The Ingersoll Milling Machine Company
    • Paul A. S. Charles
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tape-laying head
    • Patent number 4,508,584
    • Issue date Apr 2, 1985
    • The Ingersoll Milling Machine Company
    • Paul A. S. Charles
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Solar heat collector with channeled panel
    • Patent number 4,201,194
    • Issue date May 6, 1980
    • Paul A. S. Charles
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Filtering elements
    • Patent number 4,162,549
    • Issue date Jul 31, 1979
    • Royal Flush (1979) Inc.
    • Paul A. S. Charles
    • E03 - WATER SUPPLY SEWERAGE