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Richard J. Siemen

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  • Shelby Township, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stamping apparatus having flared bead
    • Patent number 9,827,606
    • Issue date Nov 28, 2017
    • FCA US LLC
    • Dajun Zhou
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    STRETCH FORMING DIE
    • Publication number 20200197997
    • Publication date Jun 25, 2020
    • Dajun Zhou
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    STAMPING APPARATUS HAVING FLARED BEAD
    • Publication number 20170157661
    • Publication date Jun 8, 2017
    • Dajun Zhou
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...