The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 1994
Filed:
Mar. 12, 1992
Applicant:
Inventors:
Seong-Ju Kim, Cheonranam, KR;
Ji-Hong Kim, Busan, KR;
Seong-Geun Jang, Cheonranam, KR;
Dae-Youp Lee, Cheonranam, KR;
Assignee:
Kumho Petrochemical Company, Limited, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528-9 ; 528382 ; 528386 ; 528392 ;
Abstract
Copolymers comprising 1-50 mole % of sulfur dioxide and 50-99 mole % of trialkylgermylstyrene, having a weight average molecular weight of 500-10,000,000 and exhibiting a high sensitivity to light, electron beam, and X-ray, as well as having an excellent anti-dry etching resistance, and their application as a positive resisting material.
Kim, Seong-Ju. (1994). Copolymer of sulfur dioxide and nuclear-substituted trialkylgermylstyrene (U.S. Patent No. 5314978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5314978
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile