Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9163133 | Method of converting a polymerizable composition into thermoplastic polyurethane of improved yellowness index and article obtained by this method | Richard W. Neuzil, Timothy E. Herod | 2015-10-20 |
| 8270089 | Thermoplastic polyurethane lenses with a specified weight percentage of urethane repeating units | Roger A. Mayr, Leanirith Yean | 2012-09-18 |
| 7922942 | Injection mold design, method for in-mold coating of lenses, and coated lenses | Matthew Lockwood, Wilfred Houle | 2011-04-12 |
| 7854865 | Method of injection molding thin thermoplastic lenses | Roger A. Mayr, Hsinjin Yang | 2010-12-21 |
| 7842204 | Method for producing laminated photochromic lenses | — | 2010-11-30 |
| 7820081 | Method for post-injection lamination to add a functional film to an optical lens | Matthew Lockwood | 2010-10-26 |
| 7135545 | High molecular weight lenses formed from viscosity-specific polycarbonate | Hsinjin Yang | 2006-11-14 |
| 6884369 | Mold and a method of hot-forming a thermoplastic lens | Hsinjin Yang, Matthew Lockwood | 2005-04-26 |
| 6790388 | Method of injection molding an optical article out of thermoplastic synthetic material | Hsinjin Yang | 2004-09-14 |
| 6695607 | Mold half-block for injection molding an optical article out of thermoplastic material, and a mold including such a half-block | Hsinjin Yang | 2004-02-24 |
| 6576162 | Method for injection molding of weld line free thermoplastic articles such as ophthalmic lenses | Hsinjin Yang | 2003-06-10 |