Inventor
Jean-Louis Bertrand
Inventor
Feigeres, FR
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G04Bprimary
G04BMechanically-driven clocks or watches38%
F01DNon-positive displacement machines or engines, e.g. steam turbines25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
F02CGas-turbine plants4%
F04DNon-positive-displacement pumps4%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants4%
F16CShafts4%
G04DApparatus or tools specially designed for making or maintaining clocks or watches4%
Y02TClimate change mitigation technologies related to transportation4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
10,401,796Barrel shaft for a clock movement, barrel spring, and barrel including such a spring and/or such a shaft201910,261,471Timepiece transmission device20199,811,054'System for securing a balance spring'20179,740,170'Oscillator for a clock movement'20179,632,483'Shock absorber body for a balance of a horological oscillator'20179,448,533'Barrel shaft for a clock movement, barrel spring and barrel including such a spring and/or such a shaft'20169,188,959'Watch case with orientable and indexed bezel'20157,901,129'Sealed wrist watch case'20117,347,672'Rotor disk balancing device, disk fitted with such a device and rotor with such a disk'20087,182,508'Linking device between a rim and a case of watch'20077,059,832'Rotation-locking of sectors of rectifier blades by bars in the parting planes of the housing'20066,890,151'Fixed guide vane assembly separated into sectors for a turbomachine compressor'20056,338,578'Retaining arrangement for a bearing, in particular for a high pressure compressor shaft'20025,586,860'Turbo aero engine provided with a device for heating turbine disks on revving up'19964,730,983'System for attaching a rotor blade to a rotor disk'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2002Patents assigned to SNECMA (3)· patent assignee history
1988Based in Melun, FR· patent location history
1996–2008Based in Livry sur Seine, FR· patent location history
2005–2008Patents assigned to SNECMA MOTEURS (3)· patent assignee history
2007–2019Patents assigned to ROLEX SA (8)· patent assignee history
2007Based in Viry, FR· patent location history
2011–2019Based in Feigeres, FR· patent location history
2015Patents assigned to MONTRES TUDOR S A (1)· patent assignee history
2016–2017Based in Saint Martin d'Hères, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROLEX SA | 8 | 2007–2019 |
| SNECMA | 3 | 1988–2002 |
| SNECMA MOTEURS | 3 | 2005–2008 |
| MONTRES TUDOR S A | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Feigeres, FR | 6 | 2011–2019 |
| Livry sur Seine, FR | 5 | 1996–2008 |
| Saint Martin d'Hères, FR | 2 | 2016–2017 |
| Viry, FR | 1 | 2007 |
| Melun, FR | 1 | 1988 |