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Inventor

Chi-Hsiang Yao

Inventor
Taoyuan County, TW

Overview

5→
Patents
2002–2016
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary
C07CAcyclic or carbocyclic compounds43%
C07DHeterocyclic compounds29%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds14%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture14%
PatentTitleYear
9,505,704'Intermediate for synthesizing treprostinil diethanolamine and method for preparing the same'20168,816,084'Crystals of morphinan derivative, manufacturing method thereof, and pharmaceutical composition using the same'20148,586,790'Anhydride derivatives of 2-(S)-(6-methoxy-2-naphtyl)-propanoic acid, preparation method and use thereof'20137,915,322'Polymerizable water-soluble or alcohol-soluble ultraviolet absorber'20116,403,817'Method for preparing prostaglandin E-type compound'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2013Patents assigned to EVERLIGHT USA INC (3)· patent assignee history
2002–2016Based in Taoyuan County, TW· patent location history
2013Patents assigned to TSAI CHIA-CHUNG (1)· patent assignee history
2013Patents assigned to YANG HAO-CHENG (1)· patent assignee history
2013Patents assigned to YAO CHI-HSIANG (1)· patent assignee history
2013Based in Taoyuan, TW· patent location history
2014–2016Patents assigned to EVERLIGHT CHEM IND CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EVERLIGHT USA INC32002–2013
EVERLIGHT CHEM IND CORP22014–2016
TSAI CHIA-CHUNG12013
YANG HAO-CHENG12013
YAO CHI-HSIANGself12013
Locations
LocationPatentsSpan
Taoyuan County, TW42002–2016
Taoyuan, TW12013