Drouart; Alain

Patent Applications and Registrations

Patent applications and USPTO patent grants for Drouart; Alain.The latest application filed is for "method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform".

Company Profile

0.7.3

Drouart; Alain - Nanterre FR
Drouart; Alain - Nemours 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
Method of fabricating an optical fiber preform including outside deposition of silica, possibly doped silica Grant 6,715,321 - Ripoche , et al. April 6, 2	2004-04-06
Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform Grant 6,631,628 - Drouart , et al. October 14, 2	2003-10-14
Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform App 20030019245 - Drouart, Alain ; et al.	2003-01-30
Method and a device for manufacturing preforms for use in making optical fibers App 20010015080 - Ripoche, Pierre ; et al.	2001-08-23
Method of purifying silica and depositing on an optical fiber preform Grant 6,269,663 - Drouart , et al. August 7, 2	2001-08-07
Method Of Purifying Natural Or Synthetic Silica, And Application Thereof To Depositing Purified Natural Or Synthetic Silica On An Optical Fiber Preform App 20010001366 - DROUART, ALAIN ; et al.	2001-05-24
Butt welding optical fiber preforms with a plasma torch Grant 6,178,779 - Drouart , et al. January 30, 2	2001-01-30
Device for drawing down an optical fiber preform Grant 5,931,984 - Drouart , et al. August 3, 1	1999-08-03
Method of building up an optical fiber preform by plasma deposition, and an optical fiber obtained from the preform built up by the method Grant 5,522,007 - Drouart , et al. May 28, 1	1996-05-28
Optical waveguide fabrication method Grant 4,676,820 - Le Sergent , et al. June 30, 1	1987-06-30

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