Electronique Marcel Dassault
22Patents
0Active
22Granted
34Portfolio score
Filing activity: Apr 17, 1973 → Nov 10, 1982
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4439670A | Method and device for the checking of the number of access attempts to an electronic store, notably that of an integrated circuit of an object such as a credit card or a buyer's card | Physics | 87 | Expired |
| US4501958A | Verification system, for example for passing through a toll point | Physics | 52 | Expired |
| US4409434A | Transistor integrated device, particularly usable for coding purposes | Electricity | 38 | Expired |
| US4434361A | Transistor integrated circuit protected against the analysis, and a card comprising such a circuit | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4499589A | Counter circuit for counting high frequency pulses using the combination of a synchronous and an asynchronous counter | Electricity | 16 | Expired |
| US4477774A | Electrical contact device for an electronic card processing apparatus | Electricity | 14 | Expired |
| US4121220A | Flat radar antenna employing circular array of slotted waveguides | Electricity | 14 | Expired |
| US4479255A | Apparatus for acquiring and collecting radio signals coming from a plurality of stations | Electricity | 13 | Expired |
| US4183022A | Transponder for radiocommunication system, particularly for measuring the distance between two stations | Physics | 11 | Expired |
| US4149686A | Method and apparatus for guiding a rotating moving body | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4484356A | Apparatus and method for acquiring and processing radio signals received at different frequencies | Electricity | 10 | Expired |
| US4494241A | Installation for the transmission of informations by an optical bus line | Electricity | 9 | Expired |
| US4151527A | Process and apparatus for the detection of objects, especially of objects having a very small equivalent surface area | Physics | 7 | Expired |
| US4099181A | Flat radar antenna | Electricity | 6 | Expired |
| US3946388A | System for and method of analyzing electromagnetic waves | Physics | 6 | Expired |
| US4243837A | Telephone transmission installation between interlocutors in a noisy environment | Electricity | 6 | Expired |
| US4174519A | Method for the improved utilization of response signals in a _secondary radar system and a secondary radar system for implementing the method | Physics | 6 | Expired |
| US4479249A | Apparatus for collecting and processing messages transmitted at different signal frequencies | Electricity | 5 | Expired |
| US4068228A | Multiple channel amplifier | Electricity | 5 | Expired |
| US4408895A | Apparatus for accurately timing an event relative to clock signals | Physics | 4 | Expired |
| US3979692A | Apparatus for phase keying in frequency and phase voltage controlled oscillator with an incoming signal having a T period, and phase coded of the biphase PCM type or PSK type | Electricity | 3 | Expired |
| US3962703A | Airborne telemetering radar having variable width range gates | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.