Chwan Huey Lim Chang

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Long Grove, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
One-piece zipper puller
- Patent number 9,743,723
- Issue date Aug 29, 2017
- Illinois Tool Works Inc.
- Chwan Huey Lim Chang
- A44 - HABERDASHERY JEWELLERY

Patents Applicationslast 30 patents

Information Patent Application
ONE-PIECE ZIPPER PULLER
- Publication number 20130312230
- Publication date Nov 28, 2013
- Illinois Tool Works Inc.
- Chwan Huey Lim Chang
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC