Chang; I-Chang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; I-Chang.The latest application filed is for "battery polarity detection system".
- Chang; I-Chang - Yonghe City TW
- Chang; I-Chang - Sijhih TW
- Chang; I-Chang - Sijhih City TW
- Chang; I-Chang - Siihih TW
- Chang; I-Chang - Taipei TW
- Chang; I-Chang - Chung-Ho TW
- Chang, I Chang - Chong Ho City TW
- Chang, I Chang - Taipei Hsien TW
| Patent | Date |
|---|---|
| Battery Polarity Detection System App 20120139498 - Chang; I-Chang | 2012-06-07 |
| Contact pin structure Grant 8,157,597 - Chang April 17, 2 | 2012-04-17 |
| Contact pin structure App 20110159712 - Chang; I-Chang | 2011-06-30 |
| Charger Grant D629,354 - Chang December 21, 2 | 2010-12-21 |
| Charger structure with normal and boosting charge modes Grant 7,705,566 - Chang April 27, 2 | 2010-04-27 |
| Charger Grant D605,112 - Chang December 1, 2 | 2009-12-01 |
| Current-to-voltage detection circuit Grant 7,498,798 - Chang March 3, 2 | 2009-03-03 |
| Charging device with battery capacity analysis function App 20090033284 - Chang; I-Chang | 2009-02-05 |
| Device for automatic detection of battery polarity Grant 7,449,875 - Chang November 11, 2 | 2008-11-11 |
| Battery plug structure Grant 7,435,094 - Chang October 14, 2 | 2008-10-14 |
| Structural assembly of electric exchanger device App 20080206630 - Chang; I-Chang | 2008-08-28 |
| Device for automatic detection of battery polarity App 20080074097 - Chang; I-Chang | 2008-03-27 |
| Charger structure App 20080074085 - Chang; I-Chang | 2008-03-27 |
| Battery plug structure App 20080076271 - Chang; I-Chang | 2008-03-27 |
| Current-to-voltage detection circuit App 20070216393 - Chang; I-Chang | 2007-09-20 |
| Non-polarity charging device Grant 7,084,606 - Chang August 1, 2 | 2006-08-01 |
| Non-polarity Charging Device App 20060055368 - Chang; I-Chang | 2006-03-16 |
| Automatic detecting and switching vehicle charger Grant 6,650,086 - Chang November 18, 2 | 2003-11-18 |
| Jumper cable apparatus having a protective device App 20030100216 - Chang, I Chang | 2003-05-29 |
| Electric Energy Source Having Safety Control Device App 20030038545 - Chang, I Chang | 2003-02-27 |
| Rechargeable/portable multi-voltage dc power supply Grant 5,321,349 - Chang June 14, 1 | 1994-06-14 |
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