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:
Jul. 21, 1998
Filed:
Oct. 16, 1997
Applicant:
Inventor:
Jibing Lin, Murrysville, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C07D / ;
U.S. Cl.
CPC ...
252586 ; 549383 ; 549384 ; 549331 ; 549362 ; 549 58 ; 549 60 ; 548454 ; 548525 ; 548196 ; 544150 ; 544375 ;
Abstract
Described are novel pentahydrophenanthro�9,10-b!pyrans and tetrahydrocyclopenta�c!-naphtho�1,2-b!pyrans. Also described are polymeric organic host materials that contain or that are coated with such compounds.