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. 25, 2003
Filed:
Jun. 22, 2001
Applicant:
Inventors:
Hosadurga K. Shobha, Blacksburg, VA (US);
Venkat Sekharipuram, Roanoke, VA (US);
James E. McGrath, Blacksburg, VA (US);
Atul Bhatnagar, Roanoke, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 7/902 ; C08G 6/300 ; C08G 1/914 ; C08F 8/22 ;
U.S. Cl.
CPC ...
C08G 7/902 ; C08G 6/300 ; C08G 1/914 ; C08F 8/22 ;
Abstract
High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A method of preparing optical and ophthalmic lenses by injection molding the polymers of the present invention into the form of the optical or ophthalmic lenses is also provided.
Shobha, Hosadurga. (2003). High refractive index thermoplastic polyphosphonates (U.S. Patent No. 6653439). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6653439
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile