US INSTR CORP has a total of 26 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, telecommunications and audio-visual technology are KINGSBURY JOHN EDWARD, GOODRUM CHARLES LANE and TELEMASTER GMBH.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 19 | |
#2 | Canada | 4 | |
#3 | United Kingdom | 2 | |
#4 | France | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Telecommunications | |
#3 | Audio-visual technology | |
#4 | Machines | |
#5 | Mechanical elements | |
#6 | Consumer goods |
# | Name | Total Patents |
---|---|---|
#1 | Warnke Herbert R | 11 |
#2 | Barry Leon G | 6 |
#3 | Cleaveland Le Roy A | 2 |
#4 | Carter Charles W | 2 |
#5 | Tooker Frank H | 2 |
#6 | Turnbull Arthur Jr | 1 |
#7 | Warnke Robert | 1 |
#8 | Coliz James T | 1 |
#9 | Turnbull Jr Arthur | 1 |
#10 | Cleaveland Leroy A | 1 |
Publication | Filing date | Title |
---|---|---|
US3135896A | Narrow band sensing circuit | |
US2924671A | Handset holders | |
US2692380A | Ringer | |
US2709734A | Electric contact arc-suppressing rotary snap switches | |
US2699478A | Electric relay | |
US2588793A | Rotary selector switch | |
US2579169A | Indexing mechanism | |
US2694756A | Rotary switch | |
US2577225A | Rotary switch | |
US2502824A | Signaling device for sound powered telephone systems | |
US2496376A | Interrupter | |
US2434251A | Telephone headband | |
US2503857A | Polarized electromagnet for telephone instruments | |
US2411014A | Terminal block | |
US2411013A | Rotary selector switch | |
GB543945A | Improvements in alternating current generators | |
US2263373A | Signal generator | |
US2223927A | Call indicator | |
US2223926A | Automatic reset switch | |
US2245511A | Telephone instrument |