Inventor
Louis Duthion
Inventor
Paris, FR
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification18%
B07CPostal sorting12%
F15DFluid dynamics, i.e. methods or means for influencing the flow of gases or liquids12%
F16LPipes12%
B01FMixing, e.g. dissolving, emulsifying or dispersing6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
B60VAir-cushion vehicles6%
F01DNon-positive displacement machines or engines, e.g. steam turbines6%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general6%
F16KValves6%
PatentTitleYear
4,172,417'Apparatus for high speed marking of articles'19794,166,477'Discharge conduits of steam generators and the like'19794,103,702'Sound proofed valve for fluid under pressure'19784,077,322'Method for rapid marking of articles'19784,019,537'Arrangement for mounting guide vanes or other transverse objects inside a conduit'1977RE029161'Devices for the generation of ultrasonics and their application to the preparation of emulsions'19773,949,784'Air cushion vehicle fluid flow system'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to BERTIN & CIE (4)· patent assignee history
1976–1979Based in Paris, FR· patent location history
1978–1979Patents assigned to HOTCHKISS BRANDT SOGEME (2)· patent assignee history
1979Patents assigned to STEIN INDUSTRIE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BERTIN & CIE | 4 | 1976–1979 |
| HOTCHKISS BRANDT SOGEME | 2 | 1978–1979 |
| STEIN INDUSTRIE | 1 | 1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Paris, FR | 7 | 1976–1979 |