FREQUENCY ELECTRONICS INC has a total of 13 patent applications. Its first patent ever was published in 1971. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets basic communication technologies, electrical machinery and energy and control are EOSEMI LTD, ALWIN HAHNEL and WILTRON MEASUREMENTS LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Australia | 1 | |
#3 | Canada | 1 | |
#4 | EPO (European Patent Office) | 1 | |
#5 | WIPO (World Intellectual Property Organization) | 1 |
# | Industry | |
---|---|---|
#1 | Basic communication technologies | |
#2 | Electrical machinery and energy | |
#3 | Control |
# | Name | Total Patents |
---|---|---|
#1 | Stone Charles | 7 |
#2 | Mcclelland Thomas | 6 |
#3 | Ho John C | 6 |
#4 | Stone Charles S | 2 |
#5 | Goldfrank Bruce | 2 |
#6 | Bloch M | 1 |
#7 | Bloch Martin B | 1 |
#8 | Pascaru Iancu | 1 |
#9 | Warner Arthur W | 1 |
#10 | Bloch Martin | 1 |
Publication | Filing date | Title |
---|---|---|
US2005242893A1 | Method for achieving highly reproducible acceleration insensitive quartz crystal oscillators | |
CA2430778A1 | Precision oven-controlled crystal oscillator | |
US5107226A | Atomic frequency standard using optical pumping for state preparation and magnetic state selection of atoms | |
US5160901A | Multimode crystal oscillator | |
US4748367A | Contact heater for piezoelectric effect resonator crystal | |
US4701661A | Piezoelectric resonators having a lateral field excited SC cut quartz crystal element | |
US3715563A | Contact heaters for quartz crystals in evacuated enclosures |