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Robert Franklin Dray

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  • Dallas, TX, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    INJECTION MOLDING APPARATUS
    • Publication number 20240351258
    • Publication date Oct 24, 2024
    • Robert F. Dray,
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    PLASTIC PROCESSING SCREW
    • Publication number 20170305057
    • Publication date Oct 26, 2017
    • Robert F. Dray,
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Plastic screw
    • Publication number 20040213077
    • Publication date Oct 28, 2004
    • Robert Dray
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Plastics screw with dual barriers
    • Publication number 20040126453
    • Publication date Jul 1, 2004
    • Robert F. Dray,
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Dual cylinder injection molding apparatus
    • Publication number 20030039718
    • Publication date Feb 27, 2003
    • Robert Franklin Dray
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Sliding ring non-return valve
    • Publication number 20020005219
    • Publication date Jan 17, 2002
    • Robert F. Dray
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL