TREA

writing or drawing instruments

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  • CPC
  • B21D53/76
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL B21D53/00Making other particular articles

Current Industry

B21D53/76writing or drawing instruments
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Ball pen tip manufacturing machines, ball pen tips, and ball pens
    • Patent number 11,660,905
    • Issue date May 30, 2023
    • Kotobuki & Co. Ltd.
    • Byun Young Jae
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Methods for manufacturing ball pen tips, ball pen tip manufacturing...
    • Patent number 10,836,204
    • Issue date Nov 17, 2020
    • KOTOBUKI & CO. LTD.
    • Byun Young Jae
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cooled turbine airfoil fabricated from sheet material
    • Patent number 8,439,647
    • Issue date May 14, 2013
    • SIEMENS ENERGY, INC.
    • Allister W. James
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Head attachment member, liquid ejection device, and head attachment...
    • Patent number 8,262,198
    • Issue date Sep 11, 2012
    • Seiko Epson Corporation
    • Hiroyuki Ishii
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Ballpoint pen refill and fabrication method thereof
    • Patent number 5,984,559
    • Issue date Nov 16, 1999
    • Kabushiki Kaisha Pilot
    • Toshikazu Shiobara
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3731366
    • Patent number 3,731,366
    • Issue date May 8, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3605246
    • Patent number 3,605,246
    • Issue date Sep 20, 1971
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3581543
    • Patent number 3,581,543
    • Issue date Jun 1, 1971
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3570293
    • Patent number 3,570,293
    • Issue date Mar 16, 1971
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3496627
    • Patent number 3,496,627
    • Issue date Feb 24, 1970
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3470603
    • Patent number 3,470,603
    • Issue date Oct 7, 1969
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3463106
    • Patent number 3,463,106
    • Issue date Aug 26, 1969
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3452693
    • Patent number 3,452,693
    • Issue date Jul 1, 1969
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3388455
    • Patent number 3,388,455
    • Issue date Jun 18, 1968
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3344647
    • Patent number 3,344,647
    • Issue date Oct 3, 1967
    • A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH
  • Information Patent Grant

    3283390
    • Patent number 3,283,390
    • Issue date Nov 8, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3281933
    • Patent number 3,281,933
    • Issue date Nov 1, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2879586
    • Patent number 2,879,586
    • Issue date Mar 31, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2683431
    • Patent number 2,683,431
    • Issue date Jul 13, 1954
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    2646761
    • Patent number 2,646,761
    • Issue date Jul 28, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2609774
    • Patent number 2,609,774
    • Issue date Sep 9, 1952
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2567608
    • Patent number 2,567,608
    • Issue date Sep 11, 1951
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2320369
    • Patent number 2,320,369
    • Issue date Jun 1, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2313779
    • Patent number 2,313,779
    • Issue date Mar 16, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2313778
    • Patent number 2,313,778
    • Issue date Mar 16, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2313777
    • Patent number 2,313,777
    • Issue date Mar 16, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2314054
    • Patent number 2,314,054
    • Issue date Mar 16, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2267147
    • Patent number 2,267,147
    • Issue date Dec 23, 1941
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2243342
    • Patent number 2,243,342
    • Issue date May 27, 1941
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2228250
    • Patent number 2,228,250
    • Issue date Jan 14, 1941
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents