BUTLER JOHN L has a total of 11 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1932. It filed its patents most often in United States and Canada. Its main competitors in its focus markets audio-visual technology, machines and measurement are DYNAMICS CORP MASSA DIV, IMAGE ACOUSTICS INC and POMPEI FRANK JOSEPH.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 2 |
# | Industry | |
---|---|---|
#1 | Audio-visual technology | |
#2 | Machines | |
#3 | Measurement | |
#4 | Consumer goods | |
#5 | Electrical machinery and energy | |
#6 | Semiconductors | |
#7 | Mechanical elements | |
#8 | Furniture and games |
# | Technology | |
---|---|---|
#1 | Loudspeakers and microphones | |
#2 | Generating mechanical vibrations | |
#3 | Radio navigation | |
#4 | Sound-producing devices | |
#5 | Electric switches | |
#6 | Gearing | |
#7 | Semiconductor devices | |
#8 | Unspecified technologies | |
#9 | Geophysics | |
#10 | Games |
# | Name | Total Patents |
---|---|---|
#1 | Butler John L | 11 |
#2 | Butler Alexander L | 4 |
#3 | Clemens Richard A | 1 |
#4 | Clark Arthur | 1 |
Publication | Filing date | Title |
---|---|---|
US10744532B1 | End driven bender transduction apparatus | |
US2014369160A1 | Active cloaking with wideband transducers | |
US8659211B1 | Quad and dual cantilever transduction apparatus | |
US8599648B1 | Doubly steered acoustic array | |
US8836792B1 | Active cloaking with transducers | |
US8072843B1 | Stepped multiply resonant wideband transducer apparatus | |
US4443731A | Hybrid piezoelectric and magnetostrictive acoustic wave transducer | |
US3049934A | Electrically assisted manual gear shift means | |
US1933159A | Game | |
CA915930A | Boil-in extension for kettles and lids | |
CA877493A | Roller skate wheel assembly |