VTechWorks staff will be away for the Memorial Day holiday on Monday, May 27, and will not be replying to requests at that time. Thank you for your patience.
Optic devices formed from melt processable thermoplastic materials having a high refractive index
Abstract
This invention relates generally to optic devices such as ophthalmic lenses, lens blanks, and lens preforms, made from a thermoplastic material of a specific formula and a process for forming the same.
Assignee
Innotech, Inc., Johnson & Johnson Vision Care
Virginia Tech Intellectual Properties, Inc.
Patent Number
6008299
Application Number
8912117
Primary/U.S. Class
351/159.74
Other/U.S. Class
525/255
525/191
525/196
525/200
525/212
CPC Class
C08G75/23
C08G65/4006
C08G65/4068
C08L71/00
G02B1/041
Patent Type
utility
Collections
- Virginia Tech Patents [619]