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:
Dec. 31, 1991
Filed:
Nov. 29, 1989
Applicant:
Inventors:
Peter Schwabe, Leverkusen, DE;
Reiner Voigt, Leverkusen, DE;
Ottfried Schlak, Colonge, DE;
Otto-Christian Geyer, Braunfels, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524474 ; 523107 ; 525478 ; 3511 / ; 3511 / ; 623-6 ; 524490 ; 264-11 ; 264-26 ; 26433111 ; 528 15 ;
Abstract
The present invention relates to optically clear polysiloxane-based compositions which are employed, in particular, for the production of contact optical articles such as contact lenses, scleral lenses and intraocular lenses.