Japan, Jan. 20 -- OSAKA GAS CHEM KK has got intellectual property rights for 'TETRACARBOXYLIC ACID DIANHYDRIDE HAVING FLUORENE SKELETON, METHOD FOR PRODUCING THE SAME, AND POLYIMIDE USING THE SAME.' Other related details are as follows:
Application Number: JP,2022-067482
Category (FI): C07D307/89@Z,C08G73/10
Stage: Grant (IP right document published.)
Filing Date: April 15, 2022
Publication Date: Nov. 4, 2022
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
