Yao; Kazuhiko

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yao; Kazuhiko.The latest application filed is for "method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5- trimethylcyclohexane".

Company Profile

0.7.4

Yao; Kazuhiko - Wakayama JP

*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
Process for producing 1, 1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane Grant 6,992,227 - Yao , et al. January 31, 2	2006-01-31
Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane Grant 6,972,344 - Yao , et al. December 6, 2	2005-12-06
Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5- trimethylcyclohexane App 20050165258 - Yao, Kazuhiko ; et al.	2005-07-28
Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes Grant 6,875,896 - Yao , et al. April 5, 2	2005-04-05
Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes App 20050004405 - Yao, Kazuhiko ; et al.	2005-01-06
Hydroxyphenyl adamantanes and process for the production of the same Grant 6,720,460 - Yoshikawa , et al. April 13, 2	2004-04-13
Method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane Grant 6,673,973 - Yao , et al. January 6, 2	2004-01-06
Method for producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane Grant 6,673,975 - Yao , et al. January 6, 2	2004-01-06
Process for production of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane Grant 6,673,974 - Yao , et al. January 6, 2	2004-01-06
Hydroxyphenyl adamantanes and process for the production of the same App 20030187307 - Yoshikawa, Akira ; et al.	2003-10-02
Method for removing butyl groups from butyl phenol compounds App 20020007092 - Yao, Kazuhiko ; et al.	2002-01-17

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