CAMBRIDGE RES & DEV GROUP has a total of 38 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets computer technology, basic communication technologies and audio-visual technology are RECOTON CORP, VARIABLE SPEECH CONTROL and HASEGAWA KAZUO.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 16 | |
#2 | Canada | 4 | |
#3 | Germany | 3 | |
#4 | United Kingdom | 3 | |
#5 | Netherlands | 2 | |
#6 | Sweden | 2 | |
#7 | Argentina | 1 | |
#8 | Austria | 1 | |
#9 | Australia | 1 | |
#10 | Spain | 1 | |
#11 | France | 1 | |
#12 | Israel | 1 | |
#13 | Republic of Korea | 1 | |
#14 | USSR (Union of Socialist Soviet Republics) | 1 |
# | Industry | |
---|---|---|
#1 | Computer technology | |
#2 | Basic communication technologies | |
#3 | Audio-visual technology | |
#4 | Telecommunications | |
#5 | Packaging and shipping | |
#6 | Furniture and games | |
#7 | Measurement | |
#8 | Transport |
# | Technology | |
---|---|---|
#1 | Special information storage | |
#2 | Pulse technique | |
#3 | Speech analysis | |
#4 | Transmission | |
#5 | Mechanically computing digital computers | |
#6 | Containers for goods storage | |
#7 | Devices for public amusement | |
#8 | Resonators | |
#9 | Measuring volume | |
#10 | Ships |
# | Name | Total Patents |
---|---|---|
#1 | Schiffman Murray M | 5 |
#2 | Sherman Lawrence M | 3 |
#3 | Richardson James E | 3 |
#4 | Richardson J | 2 |
#5 | Greenberg Sanford David | 2 |
#6 | Schiffman M | 2 |
#7 | Richardson J E | 1 |
#8 | M Sherman Lawrence | 1 |
#9 | Swain Stephen C | 1 |
#10 | Norvell Bert E | 1 |
Publication | Filing date | Title |
---|---|---|
US4252787A | Anti-fertility composition and method | |
US3936610A | Dual delay line storage sound signal processor | |
SU656557A3 | Device for reproducing sound signal | |
DE2404282A1 | SPEECH PRESSER | |
CA988859A | Speech-compressor | |
US3869708A | Speech compressor with gap filling | |
US3876111A | Plural chambered squeeze tube | |
US3851800A | Plural chambered, gravity oriented dispenser | |
US3846827A | Speech compressor-expander with signal sample zero reset | |
US3906384A | System for nullifying signal processor distortions | |
US3840814A | System for generating pulses of linearly varying period | |
US3828361A | Speech compressor-expander | |
KR790000012B1 | Variable delay line signal processor for soun reproduction | |
DE2238136A1 | CONTROLLED SIGNAL PROCESSOR WITH DELAY LINE FOR SOUND REPRODUCTION | |
US3850346A | Hand squeezable, plural chambered, liquid dispenser | |
US3838218A | Bifrequency controlled analog shift register speech processor | |
IL35751D0 | Coital timing device | |
US3712614A | Swing seat | |
US3604623A | Coital timing device | |
US3651927A | Tablet dispenser |