AEL Microtel Limited
18Patents
0Active
18Granted
34Portfolio score
Filing activity: Oct 21, 1980 → Oct 27, 1983
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4481490A | Modulator utilizing high and low frequency carriers | Electricity | 104 | Expired |
| US4388690A | Automatic meter reading transponder | Electricity | 64 | Expired |
| US4487654A | Method of manufacturing printed wiring boards | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4447903A | Forward error correction using coding and redundant transmission | Electricity | 36 | Expired |
| US4498174A | Parallel cyclic redundancy checking circuit | Physics | 22 | Expired |
| US4375621A | Circuit for linearizing frequency modulated oscillators on microstrip | Electricity | 18 | Expired |
| US4454600A | Parallel cyclic redundancy checking circuit | Electricity | 17 | Expired |
| US4549273A | Memory access control circuit | Physics | 15 | Expired |
| US4479256A | Two pilot frequency control for communication systems | Electricity | 7 | Expired |
| US4466130A | Two pilot frequency control for communication systems | Electricity | 6 | Expired |
| US4365346A | Built-in linearity testing arrangement for an FM radio system | Electricity | 5 | Expired |
| US4399409A | Apparatus for testing the linearity of a frequency modulated oscillator | Physics | 5 | Expired |
| US4363131A | Built-in group delay testing arrangement for an FM radio system | Electricity | 4 | Expired |
| US4398159A | Switch mode - class B power amplifier | Electricity | 4 | Expired |
| US4405897A | Frequency deviation testing and adjusting system for frequency modulated oscillators | Physics | 4 | Expired |
| US4530094A | Coding for odd error multiplication in digital systems with differential coding | Electricity | 3 | Expired |
| US4375698A | Apparatus for testing microwave radios having 35 MHz if using test equipment designed for 70 MHz IF | Electricity | 2 | Expired |
| US4399408A | Apparatus for testing the linearity of a frequency modulated oscillator | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.