NORRIS ELWOOD G has a total of 23 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United States, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets audio-visual technology, electrical machinery and energy and telecommunications are PICKERING & CO INC, NIDEC PIGEON CORP and CLIFTOPHONE LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 7 | |
#3 | WIPO (World Intellectual Property Organization) | 3 | |
#4 | Germany | 2 | |
#5 | EPO (European Patent Office) | 2 |
# | Industry | |
---|---|---|
#1 | Audio-visual technology | |
#2 | Electrical machinery and energy | |
#3 | Telecommunications | |
#4 | Control | |
#5 | Machines |
# | Technology | |
---|---|---|
#1 | Loudspeakers and microphones | |
#2 | Special information storage | |
#3 | Magnets and transformers | |
#4 | Transmission | |
#5 | Antennas | |
#6 | Alarm systems | |
#7 | Electric discharge tubes | |
#8 | Unspecified technologies | |
#9 | Non-portable lighting devices | |
#10 | Lighting device details |
# | Name | Total Patents |
---|---|---|
#1 | Norris Elwood G | 21 |
#2 | G Norris Elwood | 2 |
#3 | Croft James J | 1 |
#4 | Croft Iii James J | 1 |
#5 | Norris Joseph O | 1 |
Publication | Filing date | Title |
---|---|---|
US2013164173A1 | Plasma emitter | |
EP0120838A1 | Drive mechanism for multiple, low-speed cassette recorders. | |
EP0105255A1 | Pen-size radio | |
US4217573A | Switching unit for selectively connecting together various combinations of audio subsystems | |
US4215377A | Multi-speed tape cassette system | |
US4090178A | Combination smoke detector and lamp structure | |
CA969104A | Radial arm phonograph with record changer | |
CA969106A | Radial arm phonograph with record changer | |
CA969105A | Radial arm phonograph with record changer | |
CA969107A | Radial arm phonograph with record changer | |
CA948116A | Radial arm phonograph with record changer | |
DE1572480A1 | Record player | |
DE1472026A1 | Tonearm for record player | |
CA821028A | Phonograph tone arm and pickup assembly | |
CA871835A | Radial phonograph and pickup assembly |