Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5864293 | Optical smoke detectors | Eugeniusz Smycz | 1999-01-26 |
| 5815075 | Fire dector including a non-volatile memory | Eugeniusz Smycz | 1998-09-29 |
| 5751241 | Method and apparatus for measuring the speed of a moving body | Eric Carreel | 1998-05-12 |
| 5637848 | Payment installation for a transport network | Eric Carreel | 1997-06-10 |
| 5593565 | Devices for separating particles contained in a fluid | Armand Ajdari, Jacques PROST, Jean-Louis Viovy | 1997-01-14 |
| 5565717 | Devices for manufacturing electrets, and electrets obtained thereby | Didier Perino | 1996-10-15 |
| 5544001 | Electrostatic relay | Mitsuo Ichiya, Fumihiro Kasano, Hiromi Nishimura, Dider Perino | 1996-08-06 |
| 5493295 | System for informing users about urban transport | Eric Carreel | 1996-02-20 |
| 5486423 | SiO.sub.2 electrets and process of making it | Didier Perino | 1996-01-23 |
| 5483454 | Portable appliances for informing bus users | Eric Carreel | 1996-01-09 |
| 5483234 | Installation for informing users of a bus network about waiting times for the buses | Eric Carreel, Jean-Claude Decaux | 1996-01-09 |
| 5461374 | Systems for informing users about waiting times for buses at stops in a network | Eric Carreel | 1995-10-24 |
| 5438624 | Processes and devices for protecting a given volume, preferably arranged inside a room, from outside noises | Mathias Fink | 1995-08-01 |
| 5247260 | Methods and apparatuses for determining the distribution of electric charge in electrical insulators produced by a sudden deformation in the insulators | Claude Alquie nee Thibault | 1993-09-21 |
| 5227949 | Devices for grounding vehicle bodies or similar | Claude Hennion, Eugeniusz Smycz | 1993-07-13 |
| 5014050 | Electronic interrogation circuits | Claude Hennion, Eugeniusz Smycz | 1991-05-07 |
| 4992785 | Installation for controlling and monitoring the different coded locks of an assembly | Claude Hennion | 1991-02-12 |
| 4893118 | Device for identification by proximity | Claude Hennion, Didier Leonard | 1990-01-09 |
| 4870411 | Coded locking device, more especially with keyboard | Claude Hennion | 1989-09-26 |
| 4864141 | Smoke detector with ionization chamber | — | 1989-09-05 |
| 4857913 | Coded objects identifiable by proximity and devices for changing the codes of these objects | Claude Hennion, Didier Leonard | 1989-08-15 |
| 4825462 | Devices for delivering information on their communications to subscribers of telephone lines | Dominique Taudin, Eric Carreel | 1989-04-25 |
| 4741275 | Device for controlling accesses of the security chamber | Claude Hennion | 1988-05-03 |
| 4739349 | Devices for making electric charge images visible | Georges Charpak | 1988-04-19 |
| 4737768 | Electronic identification assemblies of capacitive keyboards | Claude Hennion | 1988-04-12 |