Inventor
Alain Drouart
Inventor
Nanterre, FR
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Bprimary
C03BManufacture, shaping, or supplementary processes53%
C03CChemical composition of glasses, glazes or vitreous enamels24%
C01BNon-metallic elements12%
G02BOptical elements, systems or apparatus6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
6,715,321'Method of fabricating an optical fiber preform including outside deposition of silica, possibly doped silica'20046,631,628'Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform'20036,477,864'Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform'20026,412,310'Apparatus for gravity feeding powder to a plasma torch for manufacturing glass fiber performs'20026,269,663'Method of purifying silica and depositing on an optical fiber preform'20016,202,447'Method of making a glass fiber preform with adjusting a spacing while increasing acceleration of a starting glass powder'20016,178,779'Butt welding optical fiber preforms with a plasma torch'20015,931,984'Device for drawing down an optical fiber preform'19995,522,007'Method of building up an optical fiber preform by plasma deposition, and an optical fiber obtained from the preform built up by the method'19964,676,820'Optical waveguide fabrication method'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to LYONNAISE DE TRANSMISSIONS COM (1)· patent assignee history
1987Based in Nemours, FR· patent location history
1996–1999Patents assigned to ALCATEL FIBRES OPTIQUES (2)· patent assignee history
1996–2004Based in Nanterre, FR· patent location history
2001–2004Patents assigned to CIT ALCATEL (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIT ALCATEL | 7 | 2001–2004 |
| ALCATEL FIBRES OPTIQUES | 2 | 1996–1999 |
| LYONNAISE DE TRANSMISSIONS COM | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nanterre, FR | 9 | 1996–2004 |
| Nemours, FR | 1 | 1987 |