Michel Prassas
28Patents
12h-index
27Co-inventors
81Inventor score
Filing activity: Jun 1, 1982 → Sep 8, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4432956A | Preparation of monolithic silica aerogels, the aerogels thus obtained and their use for the preparation of silica glass articles and of heat-insulating materials | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4742028A | Optical and ophthalmic glasses | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4540672A | Glasses of low density and high index of refraction for ophthalmic and optical applications | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6944192B2 | Planar laser | Electricity | 20 | Expired |
| US6495482B1 | Glass composition | Electricity | 20 | Expired |
| US5023209A | Fast fading, high refractive index photochromic glass | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4891336A | High index photochromic glasses | Chemistry; Metallurgy | 20 | Expired |
| US5300465A | Photochromic glasses which darken to a pink hue | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6503860B1 | Antimony oxide glass with optical activity | Chemistry; Metallurgy | 15 | Expired |
| US5525553A | Colorless ophthalmic glasses | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5288669A | Glasses with very high index of refraction and low density | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5426077A | High index brown photochromic glasses | Chemistry; Metallurgy | 12 | Expired |
| US4757034A | Lightly tinted glasses of variable transmission | Chemistry; Metallurgy | 11 | Expired |
| US6162749A | Photochromic glasses | Chemistry; Metallurgy | 11 | Expired |
| US6429162B1 | Glass for high and flat gain 1.55 &mgr;m optical amplifiers | Electricity | 10 | Expired |
| US5993910A | Material for imparting non-stick and non-wetting properties | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5275979A | Colored glasses and method | Chemistry; Metallurgy | 10 | Expired |
| US4746633A | Fast fading photochromic glass | Chemistry; Metallurgy | 7 | Expired |
| US5292553A | Ultra thin zircon coating and membrane | Performing Operations; Transporting | 6 | Expired |
| US6563630B1 | Optical amplifier apparatus | Electricity | 6 | Expired |
| US5162826A | High index ophthalmic glasses | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6054522A | Coating for imparting non-stick, abrasion resistant and non-wetting properties to inorganic articles | Chemistry; Metallurgy | 5 | Expired |
| US6062047A | Device for manufacturing a rod of a material having a cross-sectional composition gradient | Chemistry; Metallurgy | 4 | Expired |
| US6410467B1 | Antimony oxide glass with optical activity | Chemistry; Metallurgy | 4 | Expired |
| US6138479A | Method for making an article having a gradient of composition | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.