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John Hamma

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  • Milford, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Opening fingers for envelope inserting apparatus
    • Patent number 5,675,959
    • Issue date Oct 14, 1997
    • Pitney Bowes Inc.
    • John C. Hamma
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mail piece stacking machine
    • Patent number 5,615,995
    • Issue date Apr 1, 1997
    • John Nobile
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Stacked package separating system
    • Patent number 5,507,380
    • Issue date Apr 16, 1996
    • John C. Hamma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Mixed mail transport
    • Patent number 5,508,818
    • Issue date Apr 16, 1996
    • Scan-Code, Inc.
    • John C. Hamma
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Buffered stacker
    • Patent number 5,503,388
    • Issue date Apr 2, 1996
    • Bell & Howell Company
    • Kenneth Guenther
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Postal finishing kiosk
    • Patent number 5,457,636
    • Issue date Oct 10, 1995
    • Pitney Bowes Inc.
    • Ronald P. Sansone
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Pressure measuring instruments
    • Patent number 5,438,874
    • Issue date Aug 8, 1995
    • John Hamma
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Signal generating/position controlling system
    • Patent number 5,248,960
    • Issue date Sep 28, 1993
    • John Hamma
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Movable tray sheet sorter
    • Patent number 4,466,608
    • Issue date Aug 21, 1984
    • Gradco Systems, Inc.
    • R. Clark DuBois
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Universal sorter
    • Patent number D271882
    • Issue date Dec 20, 1983
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Copying and sorting apparatus
    • Patent number D271775
    • Issue date Dec 13, 1983
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Combined copying and sorting machine
    • Patent number D270253
    • Issue date Aug 23, 1983
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Sorting machine
    • Patent number 4,397,461
    • Issue date Aug 9, 1983
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Continuous form feeding and copying apparatus
    • Patent number D265564
    • Issue date Jul 27, 1982
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Compact sorter
    • Patent number 4,332,377
    • Issue date Jun 1, 1982
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Compact sorter
    • Patent number 4,328,963
    • Issue date May 11, 1982
    • Gradco-Dendoki, Inc.
    • R. Clark DuBois
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Copying and sorting apparatus
    • Patent number D264220
    • Issue date May 4, 1982
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Continuous form feeding and copying apparatus
    • Patent number D264092
    • Issue date Apr 27, 1982
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Copying and sorting apparatus
    • Patent number D263848
    • Issue date Apr 13, 1982
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Continuous form feeding and copying apparatus
    • Patent number D263850
    • Issue date Apr 13, 1982
    • Gradco/Dendoki, Inc.
    • R. Clark DuBois
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Continuous form feeder
    • Patent number 4,300,710
    • Issue date Nov 17, 1981
    • Gradco-Dendoki, Inc.
    • R. Clark Du Bois
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Automated film cartridge and mailer sorting and correlating apparatus
    • Patent number 4,186,837
    • Issue date Feb 5, 1980
    • Mystic Color Lab, Inc.
    • Stanley Popiel
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING