TREA

Bobby Chang

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  • Thousand Oaks, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic book verification system
    • Patent number 6,237,908
    • Issue date May 29, 2001
    • R. R. Donnelley and Sons Company
    • Bobby Chang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Chain tensioning device for bindery lines
    • Patent number 5,918,729
    • Issue date Jul 6, 1999
    • R. R. Donnelley and Sons Company
    • Bobby Chang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Segmented drive system for a binding line
    • Patent number 5,874,812
    • Issue date Feb 23, 1999
    • R. R. Donnelly & Sons Company
    • Bobby Chang
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Segmented drive system for a binding line
    • Patent number 5,777,443
    • Issue date Jul 7, 1998
    • R. R. Donnelley and Sons Company
    • Bobby Chang
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Dual mode pneumatic signature feeding spring and disabling apparatus
    • Patent number 5,586,756
    • Issue date Dec 24, 1996
    • Bobby Chang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Gathering chain pin
    • Patent number 5,547,066
    • Issue date Aug 20, 1996
    • R.R. Donnelley & Sons Company
    • Bobby Chang
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Mounting arrangement for a binding line
    • Patent number 5,516,090
    • Issue date May 14, 1996
    • R.R. Donnelley & Sons Company
    • Bobby Chang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Pulse encoder resolution adjustment apparatus
    • Patent number 5,397,276
    • Issue date Mar 14, 1995
    • R.R. Donnelley & Sons Company
    • Bobby Chang
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Dual source drive system
    • Patent number 5,346,437
    • Issue date Sep 13, 1994
    • R.R. Donnelley & Sons Company
    • Bobby Chang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Signature feeding apparatus
    • Patent number 5,114,129
    • Issue date May 19, 1992
    • R. R. Donnelley and Sons Company
    • Robert Chang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL