Liu; Frank Zhenhuan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Frank Zhenhuan.The latest application filed is for "treatment of teeth by aligners".
- Liu; Frank Zhenhuan - San Carlos CA
- Liu; Frank Zhenhuan - Redwood City CA
- Liu; Frank Zhenhuan - Belmont CA
| Patent | Date |
|---|---|
| Treatment of teeth by aligners Grant 11,379,097 - Wen , et al. July 5, 2 | 2022-07-05 |
| Treatment of teeth by aligners Grant 11,086,490 - Wen , et al. August 10, 2 | 2021-08-10 |
| Treatment Of Teeth By Aligners App 20190107932 - WEN; Huafeng ; et al. | 2019-04-11 |
| Treatment of teeth by aligners Grant 9,939,999 - Wen , et al. April 10, 2 | 2018-04-10 |
| Treatment Of Teeth By Aligners App 20170300207 - WEN; Huafeng ; et al. | 2017-10-19 |
| Treatment Of Teeth By Aligners App 20140229878 - WEN; Huafeng ; et al. | 2014-08-14 |
| Treatment of teeth by aligners Grant 8,740,614 - Wen , et al. June 3, 2 | 2014-06-03 |
| Correcting the position of teeth in dental arch model Grant 8,087,932 - Liu January 3, 2 | 2012-01-03 |
| Producing wrinkled dental aligner for dental treatment Grant 7,831,322 - Liu , et al. November 9, 2 | 2010-11-09 |
| Treatment Of Teeth By Aligners App 20090286196 - Wen; Huafeng ; et al. | 2009-11-19 |
| System And Methods For Casting Physical Tooth Model App 20090053669 - LIU; FRANK ZHENHUAN ; et al. | 2009-02-26 |
| Correcting the position of teeth in dental arch model App 20080318179 - Liu; Frank Zhenhuan | 2008-12-25 |
| System and methods for casting physical tooth model Grant 7,435,084 - Liu , et al. October 14, 2 | 2008-10-14 |
| Multi-layer casting methods and devices App 20070092853 - Liu; Frank Zhenhuan ; et al. | 2007-04-26 |
| Treatment of teeth by aligners App 20060275731 - Wen; Huafeng ; et al. | 2006-12-07 |
| Computer aided orthodontic treatment planning App 20060275736 - Wen; Huafeng ; et al. | 2006-12-07 |
| Dental aligner devices having snap-on connectors App 20060234179 - Wen; Huafeng ; et al. | 2006-10-19 |
| Producing physical dental arch model having individually adjustable tooth models App 20060199145 - Liu; Frank Zhenhuan ; et al. | 2006-09-07 |
| Dental aligner for providing accurate dental treatment App 20060199142 - Liu; Frank Zhenhuan ; et al. | 2006-09-07 |
| Producing wrinkled dental aligner for dental treatment App 20060199153 - Liu; Frank Zhenhuan ; et al. | 2006-09-07 |
| System and methods for casting physical tooth model App 20060127838 - Liu; Frank Zhenhuan ; et al. | 2006-06-15 |
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