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Patent applications and USPTO patent grants for Ho; Chien Cheng.The latest application filed is for "ptc composition and over-current protection device containing the same".
Patent | Date |
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PTC composition and over-current protection device containing the same Grant 9,653,192 - Ho , et al. May 16, 2 | 2017-05-16 |
Ptc Composition And Over-current Protection Device Containing The Same App 20160093414 - HO; CHIEN CHENG ;   et al. | 2016-03-31 |
Reflowable Thermal Fuse App 20150340181 - HO; Chien Cheng ;   et al. | 2015-11-26 |
Screw Grant D552,977 - He , et al. October 16, 2 | 2007-10-16 |
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