TREA

of washers

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Industry

  • CPC
  • B21F37/04
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21FWORKING OR PROCESSING OF METAL WIRE B21F37/00Manufacture of rings from wire

Current Industry

B21F37/04of washers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing a flat spiral spring, and bending device for p...
    • Patent number 10,661,330
    • Issue date May 26, 2020
    • Adolf Schnorr GmbH + Co. KG
    • Knut Naue
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing washer and washer
    • Patent number 10,337,552
    • Issue date Jul 2, 2019
    • Taiho Kogyo Co., Ltd.
    • Hirokazu Ochiai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Shaped composites and method of making thereof
    • Patent number 7,966,855
    • Issue date Jun 28, 2011
    • Saint-Gobain Ceramics & Plastics, Inc.
    • Matthew A. Cordivari
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Spring washer and method for making the same
    • Patent number 5,809,820
    • Issue date Sep 22, 1998
    • Nissan Screw Co., Ltd.
    • Toshiaki Morimoto
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing a washer
    • Patent number 5,259,819
    • Issue date Nov 9, 1993
    • Wen-Yuan Lee
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2271731
    • Patent number 2,271,731
    • Issue date Feb 3, 1942
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1761279
    • Patent number 1,761,279
    • Issue date Jun 3, 1930
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    SHAPED COMPOSITES AND METHOD OF MAKING THEREOF
    • Publication number 20070212198
    • Publication date Sep 13, 2007
    • SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    • Matthew A. Cordivari
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...