Ho Ping Cheng

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Actuator for a ring binder mechanism
- Patent number 8,162,556
- Issue date Apr 24, 2012
- World Wide Stationery Mfg. Co., Ltd.
- Ho Ping Cheng
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Ring binder
- Patent number 5,879,097
- Issue date Mar 9, 1999
- World Wide Stationary Company Ltd.
- Ho Ping Cheng
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

Information Patent Application
ACTUATOR FOR A RING BINDER MECHANISM
- Publication number 20100166490
- Publication date Jul 1, 2010
- WORLD WIDE STATIONERY, MFG. CO., LTD.
- Ho Ping CHENG
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
Ring binder mechanism
- Publication number 20030103798
- Publication date Jun 5, 2003
- World Wide Stationery Manufacturing Company, Ltd.
- Hung Yu Cheng
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER