Guglielmetti; Robert

Patent Applications and Registrations

Patent applications and USPTO patent grants for Guglielmetti; Robert.The latest application filed is for "photochromic naphtho [2,1-b]pyran compounds containing bithienyl or terthienyl substituents, process for their manufacture, and photochromic materials and articles obtained".

Company Profile

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Guglielmetti; Robert - Marseille FR
Guglielmetti; Robert - Marseilles FR
Guglielmetti; Robert - Brest FR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Photochromic naphtho [2,1-b]pyran compounds containing bithienyl or terthienyl substituents, process for their manufacture, and photochromic materials and articles obtained Grant 6,312,811 - Frigoli , et al. November 6, 2	2001-11-06
Photochromic [3H]naphtho[2,1-b]pyran compounds containing an acetylenic substituent, process for their manufacture, and photochromic materials and articles obtained Grant 6,281,366 - Frigoli , et al. August 28, 2	2001-08-28
Homoazaadamantane spirooxazines and their use in the field of ophthalmic optics Grant 6,136,968 - Chamontin , et al. October 24, 2	2000-10-24
Photochromic spirooxazine compounds, their use in the field of ophthalmic optics Grant 6,019,914 - Lokshin , et al. February 1, 2	2000-02-01
Photochromic compounds and methods for their use Grant 5,936,016 - Lareginie , et al. August 10, 1	1999-08-10
Ring spiro [fluorene-[2H]-benzopyranes] and their use in ophthalmic optics Grant 5,604,280 - Pozzo , et al. February 18, 1	1997-02-18
Photochronic compounds of the indolino-spiro-benzoxazine type Grant 5,233,038 - Guglielmetti , et al. August 3, 1	1993-08-03
Indolino-spiroquinoxalino oxazine photochromatic compounds, methods for their preparation, photochromic compositions and articles containing such compounds Grant 5,139,707 - Guglielmetti , et al. August 18, 1	1992-08-18
Indolino-spiro-oxazine photochromic compounds with five-membered rings, method for their preparation, photochromic compositions and articles containing such compounds Grant 5,114,621 - Guglielmetti , et al. May 19, 1	1992-05-19
Novel spiro-heterocyclic compounds, their preparation, and use thereof in a thermographic recording material Grant 4,052,218 - Samat , et al. October 4, 1	1977-10-04

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