Wei Ji

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Troy, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydroforming die adjustable for springback correction
- Patent number 8,020,419
- Issue date Sep 20, 2011
- GM Global Technology Operations LLC
- Mike M. Ghiran
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Mandrel anchor for tube bending
- Patent number 7,404,310
- Issue date Jul 29, 2008
- GM Global Technology Operations, Inc.
- Mike M. Ghiran
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Hydroforming Die Adjustable for Springback Correction
- Publication number 20090255308
- Publication date Oct 15, 2009
- GM Global Technology Operations, Inc.
- Mike M. Ghiran
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MANDREL ANCHOR FOR TUBE BENDING
- Publication number 20080163666
- Publication date Jul 10, 2008
- GM Global Technology Operations, Inc.
- Mike M. Ghiran
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...