YIU; Chih-hao
Patent Applications and Registrations
Patent applications and USPTO patent grants for YIU; Chih-hao.The latest application filed is for "induction frame for a dartboard".
- YIU; Chih-hao - Seoul KR
- YIU; Chih-Hao - Taichung TW
- Yiu; Chih Hao - West Dist. Taichung 403 TW
- Yiu; Chih-Hao - Taichung City TW
- Yiu, Chih-Hao - Tatchung City TW
| Patent | Date |
|---|---|
| Induction Frame for a Dartboard App 20080111311 - YIU; Chih-hao | 2008-05-15 |
| Integrating Wave Sensing and Magnetic Induction Dartboard System App 20070228658 - YIU; Chih-Hao | 2007-10-04 |
| Unidirectional Coil Induction System for a Dartboard App 20070228659 - YIU; Chih-Hao | 2007-10-04 |
| Apparatus and Method for Magnetizing a Dart App 20070087873 - YIU; Chih-hao | 2007-04-19 |
| Magnetic Induction Dart App 20070080498 - YIU; Chih-Hao | 2007-04-12 |
| Game dart having ballast Grant 7,108,620 - Yiu September 19, 2 | 2006-09-19 |
| Method for driving electric percussion tool App 20050205273 - Yiu, Chih Hao ; et al. | 2005-09-22 |
| Water pumping and controlling device App 20050158176 - Yiu, Chih Hao ; et al. | 2005-07-21 |
| Dart board cabinet having toe line generator App 20050104296 - Yiu, Chih Hao ; et al. | 2005-05-19 |
| Method for generating lines for dart games App 20050107187 - Yiu, Chih Hao ; et al. | 2005-05-19 |
| Dart board having device for generating lines App 20050104297 - Yiu, Chih Hao ; et al. | 2005-05-19 |
| Method For Driving Electric Percussion Tool App 20050045352 - Yiu, Chih Hao | 2005-03-03 |
| Method for driving electric percussion tool Grant 6,854,530 - Yiu February 15, 2 | 2005-02-15 |
| Position detecting and correcting device for timepiece Grant 6,807,128 - Yiu October 19, 2 | 2004-10-19 |
| Rotary members for timepiece having reflector sheets Grant 6,804,173 - Yiu October 12, 2 | 2004-10-12 |
| Device for generating a 3-D image from two 2-D pictures Grant 6,798,573 - Yiu September 28, 2 | 2004-09-28 |
| Position detecting and correcting device for timepiece App 20040085860 - Yiu, Chih Hao | 2004-05-06 |
| Position detecting and correcting device for timepiece Grant 6,731,571 - Yiu May 4, 2 | 2004-05-04 |
| Rotary members for timepiece having reflector sheets App 20040081028 - Yiu, Chih Hao | 2004-04-29 |
| Position detecting and correcting device for timepiece App 20040022135 - Yiu, Chih Hao | 2004-02-05 |
| Position detecting and correcting device for timepiece App 20040022134 - Yiu, Chih Hao | 2004-02-05 |
| Device for generating a 3-D image from two 2-D pictures App 20030210463 - Yiu, Chih-Hao | 2003-11-13 |
| Device for detecting speed and position of balls App 20030064837 - Yiu, Chih-Hao | 2003-04-03 |
| Target Block Structure Of Electronic Dartboard App 20020163131 - Yiu, Chih-Hao | 2002-11-07 |
| Finger nail decorations attaching device field of the invention App 20020157679 - Yiu, Chih-Hao | 2002-10-31 |
| Dart board display device App 20020158414 - Yiu, Chih-Hao | 2002-10-31 |
| Dart board assembly App 20020109300 - Yiu, Chih-Hao | 2002-08-15 |
| Dartboard Grant 6,375,193 - Yiu April 23, 2 | 2002-04-23 |
| Device for generating a 3-D image from two 2-D pictures App 20010048555 - Yiu, Chih-Hao | 2001-12-06 |
| Dart board App 20010006277 - Yiu, Chih-Hao | 2001-07-05 |
| Dart game having an automatic player Grant 5,954,339 - Yiu September 21, 1 | 1999-09-21 |
| Electronic dart game Grant D400,932 - Yiu November 10, 1 | 1998-11-10 |
| Dart board having a dart support Grant 5,735,527 - Yiu April 7, 1 | 1998-04-07 |
| Apparatus for scoring table tennis game Grant 5,733,210 - Yiu March 31, 1 | 1998-03-31 |
| Electronic dart game Grant D390,277 - Yiu February 3, 1 | 1998-02-03 |
| Electronic dart game Grant D390,278 - Yiu February 3, 1 | 1998-02-03 |
| Dart target Grant D378,103 - Yiu February 18, 1 | 1997-02-18 |
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