Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839314 | Chemically durable, high index, low density glasses | Jean E. Boudot | 1989-06-13 |
| 4822758 | Medium refractive index glass suitable for ophthalmic applications | Jean E. Boudot | 1989-04-18 |
| 4786617 | Glass-ceramic article, process for its production and thermally crystallizable glass | Andre Andrieu, Marie Comte, Frederic J. M. Ferry | 1988-11-22 |
| 4746633 | Fast fading photochromic glass | Michel Prassas | 1988-05-24 |
| 4742028 | Optical and ophthalmic glasses | Jean E. Boudot, Michel Prassas | 1988-05-03 |
| 4687751 | Opal glass exhibiting a creamy-white tint | Pernette R. M. Barlier | 1987-08-18 |
| 4608351 | Low PbO-containing glass for electrical devices | Jean E. Boudot | 1986-08-26 |
| 4565791 | Glasses for ophthalmic applications | Jean E. Boudot | 1986-01-21 |
| 4540672 | Glasses of low density and high index of refraction for ophthalmic and optical applications | Jean E. Boudot, Michel Prassas | 1985-09-10 |
| 4532223 | Tinted opal glasses | Pernette R. M. Barlier | 1985-07-30 |
| 4532221 | Decorative enamel for glass-ceramics having low coefficients of thermal expansion | Pernette R. M. Barlier, Gerard R. M. Boury | 1985-07-30 |
| 4469800 | Moldable fluoroborate optical glasses | Jean E. Boudot | 1984-09-04 |
| 4447550 | Lead aluminoborofluorosilicate moldable glasses | Dominique Leroy | 1984-05-08 |
| 4433062 | Moldable fluorophosphate glasses containing Nb.sub.2 O.sub.5 | Philippe L. P. Courbin | 1984-02-21 |
| 4385128 | Germanium-containing glass of high infrared transmission and low density | Jean E. Boudot | 1983-05-24 |
| 4374931 | Photochromic glass suitable for ophthalmic applications | Philippe L. P. Courbin, David J. Kerko, David L. Morse | 1983-02-22 |
| 4351906 | Ophthalmic glasses with high indices of refraction | Jean E. Boudot, Andre Michaud | 1982-09-28 |
| 4282021 | Method of making photochromic glasses suitable for simultaneous heat treatment and shaping | Thomas P. Seward, III | 1981-08-04 |