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:
Nov. 04, 2008
Filed:
Oct. 20, 2006
Sirisoma Wanigatunga, Largo, FL (US);
Aref Jallouli, Largo, FL (US);
Martin Rickwood, Clarks Summit, PA (US);
Yassin Yusef Turshani, Largo, FL (US);
Sirisoma Wanigatunga, Largo, FL (US);
Aref Jallouli, Largo, FL (US);
Martin Rickwood, Clarks Summit, PA (US);
Yassin Yusef Turshani, Largo, FL (US);
Essilor International Compagnie Generale d'Optique, Charenton Cedex, FR;
Abstract
Disclosed is a thiosphosphine compound of formula: wherein X represents with Rbeing H or —CH, R and R' represent, independently from each other, an alkyl radical, an alkoxy radical, an aryl radical or a phenyl radical which may be substituted with one or more alkyl and/or alkoxy groups, n is an integer from 0 to 4, n′ is an integer from 0 to 5, x is an integer from 0 to 2, y is an integer from 1 to 5 with the proviso that y+n is an integer from 1 to 5. The compounds can be used to make optically transparent articles such as ophthalmic lenses.