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Robert Guglielmetti
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Brest, FR
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last 30 patents
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Patent Grant
Photochromic naphtho [2,1-b]pyran compounds contain...
Patent number
6,312,811
Issue date
Nov 6, 2001
Essilor International Compagnie Generale d'Optique
Michel Frigoli
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photochromic [3H]naphtho[2,1-b]pyra...
Patent number
6,281,366
Issue date
Aug 28, 2001
Essilor International Compagnie Generale d'Optique
Michel Frigoli
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Homoazaadamantane spirooxazines and their use in the field of ophth...
Patent number
6,136,968
Issue date
Oct 24, 2000
Transitions Optical Inc.
Karine Chamontin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photochromic spirooxazine compounds, their use in the field of opht...
Patent number
6,019,914
Issue date
Feb 1, 2000
Essilor International Compagnie Generale d'Optique
Vladimir Lokshin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photochromic compounds and methods for their use
Patent number
5,936,016
Issue date
Aug 10, 1999
Essilor International Compagnie Generale d'Optique
Pierre Lareginie
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heterocyclic chromenes and their use in the field of ophthalmic optics
Patent number
5,754,271
Issue date
May 19, 1998
Essilor International (Compagnie General d'Optique)
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Ophthalmic lenses with heterocyclic chromene compounds
Patent number
5,631,720
Issue date
May 20, 1997
Essilor International (Compagnie Generale d'Optique)
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Ring spiro [fluorene-[2H]-benzopyranes] and their use in ophthalmic...
Patent number
5,604,280
Issue date
Feb 18, 1997
Essilor International Compagnie Generale D'Optique
Jean L. Pozzo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Spirooxazines and use thereof in the field of ophthalmic optics
Patent number
5,529,725
Issue date
Jun 25, 1996
Essilor International
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heterocyclic chromenes
Patent number
5,527,911
Issue date
Jun 18, 1996
Essilor International
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photochronic compounds of the indolino-spiro-benzoxazine type
Patent number
5,233,038
Issue date
Aug 3, 1993
Essilor International (Compagnie Generale d'Optique)
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Indolino-spiroquinoxalino oxazine photochromatic compounds, methods...
Patent number
5,139,707
Issue date
Aug 18, 1992
Essilor International (Compagnie Generale d'Optique)
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Indolino-spiro-oxazine photochromic compounds with five-membered ri...
Patent number
5,114,621
Issue date
May 19, 1992
Essilor International (Compagnie Generale d'Optique
Robert Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Spiropyran compounds of piperidine or thiazine rings
Patent number
4,287,337
Issue date
Sep 1, 1981
Etat Francais represente par le Delegue General Pour l'Armement
Robert J. Guglielmetti
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel spiro-heterocyclic compounds, their preparation, and use ther...
Patent number
4,052,218
Issue date
Oct 4, 1977
Laboratoires de Physicochimie Appliquee I S S E C
Andre Samat
C07 - ORGANIC CHEMISTRY