LEDEX INC has a total of 164 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, machines and mechanical elements are TRANSFORMATOREN UNION AG, ALBERT F DORMEYER and SANMEI DENKI KK.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 66 | |
#2 | Canada | 28 | |
#3 | United Kingdom | 19 | |
#4 | Germany | 13 | |
#5 | Japan | 13 | |
#6 | EPO (European Patent Office) | 10 | |
#7 | France | 10 | |
#8 | Switzerland | 3 | |
#9 | WIPO (World Intellectual Property Organization) | 2 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Mechanical elements | |
#4 | Measurement | |
#5 | Textiles and paper | |
#6 | Engines, pumps and turbines |
# | Technology | |
---|---|---|
#1 | Magnets and transformers | |
#2 | Electric switches | |
#3 | Unspecified technologies | |
#4 | Gearing | |
#5 | Typewriters | |
#6 | Dynamo-electric machines | |
#7 | Supplying combustion engines | |
#8 | Measuring force, work and fluid pressure | |
#9 | Analysing materials | |
#10 | Special measuring |
# | Name | Total Patents |
---|---|---|
#1 | Coors George T | 13 |
#2 | Myers John L | 13 |
#3 | Leland Gerald H | 11 |
#4 | Mohler David B | 10 |
#5 | Roy Kenneth Lee | 7 |
#6 | Roy Kenneth L | 6 |
#7 | Fugate Philip Edward | 5 |
#8 | Hardwick David R | 4 |
#9 | Fugate Philip E | 4 |
#10 | Biser Roger W | 4 |
Publication | Filing date | Title |
---|---|---|
US5161083A | Solenoid actuator with position feedback system | |
US4988907A | Independent redundant force motor | |
US4855700A | Dual conversion force motor | |
US4847581A | Dual conversion force motor | |
US4812884A | Three-dimensional double air gap high speed solenoid | |
US4660010A | Rotary latching solenoid | |
US4470030A | Trip solenoid | |
EP0077816A1 | Trip solenoid. | |
CA1159099A | Linear solenoid device | |
CA1151714A | Print wire solenoid | |
US4309582A | Push button switch for a controller | |
US4306206A | Linear solenoid device | |
FR2454375A1 | Printing needle control coil | |
US4272748A | Print wire solenoid | |
US4306208A | Joy-stick controller | |
GB2056780A | Tubular solenoid | |
US4282501A | Bi-directional linear actuator | |
US4235114A | Material testing device | |
JPS54156963A | Manual operating device | |
US4217567A | Tubular solenoid |