Chang; Chi-Fen

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Chi-Fen.The latest application filed is for "phenanthroindolizidine and phenanthroquinolizidine alkaloid having a hydroxyl group on the phenanthrene ring thereof, preparation method and use thereof".

Company Profile

0.3.7

Chang; Chi-Fen - Taichung N/A TW
Chang; Chi-Fen - Taipei TW
Chang; Chi-Fen - Shulin City TW
Chang; Chi-Fen - Taipei City TW

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Phenanthroindolizidine and phenanthroquinolizidine alkaloid having a hydroxyl group on the phenanthrene ring thereof, preparation method and use thereof Grant 9,708,310 - Chuang , et al. July 18, 2	2017-07-18
Phenanthroindolizidine And Phenanthroquinolizidine Alkaloid Having A Hydroxyl Group On The Phenanthrene Ring Thereof, Preparation Method And Use Thereof App 20170152257 - CHUANG; TA-HSIEN ; et al.	2017-06-01
Hidden image capturing device Grant 7,435,018 - Huang , et al. October 14, 2	2008-10-14
Hidden image capturing device App 20080002965 - Huang; Ho-Ching ; et al.	2008-01-03
Ionizer incorporated with electronic appliance App 20070081290 - Lai; Shu-Hua ; et al.	2007-04-12
Recessed touch pad App 20070013668 - Tien; Kai-Chen ; et al.	2007-01-18
Electronic apparatus with optical module having muscles suppleness effect by emitting light rays into hand and wrist operating thereon App 20070007399 - Cheng; Ling-Ling ; et al.	2007-01-11
Wireless touch-control panel and information process system using the same App 20060146031 - Wang; Hui-Chen ; et al.	2006-07-06

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.