Inventor

Michel Prassas

Inventor
Vulaines sur Seine, FR

Overview

28→
Patents
1984–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 28 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C03Cprimary
C03CChemical composition of glasses, glazes or vitreous enamels38%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
C03BManufacture, shaping, or supplementary processes12%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%
C01BNon-metallic elements3%
G02BOptical elements, systems or apparatus3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
Y10TTechnical subjects covered by former us classification3%
B01DSeparation2%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
PatentTitleYear
10,393,934Multi-pane window with a low emissivity layer and a photochromic glass201910,364,175Methods for producing shaped glass articles20196,944,192'Planar laser'20056,563,630'Optical amplifier apparatus'20036,503,860'Antimony oxide glass with optical activity'20036,495,482'Glass composition'20026,429,162'Glass for high and flat gain 1.55 m optical amplifiers'20026,410,467'Antimony oxide glass with optical activity'20026,318,128'Method of making an article having a gradient composition'20016,162,749'Photochromic glasses'20006,138,479'Method for making an article having a gradient of composition'20006,062,047'Device for manufacturing a rod of a material having a cross-sectional composition gradient'20006,054,522'Coating for imparting non-stick, abrasion resistant and non-wetting properties to inorganic articles'20005,993,910'Material for imparting non-stick and non-wetting properties'19995,525,553'Colorless ophthalmic glasses'19965,426,077'High index brown photochromic glasses'19955,300,465'Photochromic glasses which darken to a pink hue'19945,292,553'Ultra thin zircon coating and membrane'19945,288,669'Glasses with very high index of refraction and low density'19945,275,979'Colored glasses and method'19945,162,826'High index ophthalmic glasses'19925,023,209'Fast fading, high refractive index photochromic glass'19914,891,336'High index photochromic glasses'19904,757,034'Lightly tinted glasses of variable transmission'19884,746,633'Fast fading photochromic glass'19884,742,028'Optical and ophthalmic glasses'19884,540,672'Glasses of low density and high index of refraction for ophthalmic and optical applications'19854,432,956'Preparation of monolithic silica aerogels, the aerogels thus obtained and their use for the preparation of silica glass articles and of heat-insulating materials'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1994Patents assigned to CORNING FRANCE (3)· patent assignee history
1985–1990Patents assigned to CORNING GLASS WORKS (5)· patent assignee history
1985–2003Based in Avon, FR· patent location history
1992–2019Patents assigned to CORNING INC (18)· patent assignee history
1992–1994Based in Vulaines, FR· patent location history
1994–2005Based in Vulaines sur Seine, FR· patent location history
1994Based in Paris, FR· patent location history
2000Patents assigned to CORNING SA (1)· patent assignee history
2019Based in Fontainebleau, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CORNING INC181992–2019
CORNING GLASS WORKS51985–1990
CORNING FRANCE31984–1994
CORNING SA12000
Locations
LocationPatentsSpan
Vulaines sur Seine, FR141994–2005
Avon, FR61985–2003
Vulaines, FR31992–1994
Fontainebleau, FR22019
Paris, FR11994