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Patent applications and USPTO patent grants for Chang; Chia-Bo.The latest application filed is for "valve seats and a ceramic control valve of a faucet".
Patent | Date |
---|---|
Valve seats and a ceramic control valve of a faucet Grant 6,805,151 - Chang October 19, 2 | 2004-10-19 |
Back-to-back faucet valve structures Grant 6,640,357 - Chang November 4, 2 | 2003-11-04 |
Device for limiting the temperature of the output water of a cold and hot water mixing valve Grant 6,170,523 - Chang January 9, 2 | 2001-01-09 |
Structure of a cold and hot water mixing valve of a balance valve Grant 6,131,600 - Chang October 17, 2 | 2000-10-17 |
Water temperature and flow rate control device Grant 5,967,184 - Chang October 19, 1 | 1999-10-19 |
Control unit for hot and cold water Grant 5,857,489 - Chang January 12, 1 | 1999-01-12 |
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