FOREST RADIO TELEPHONE AND TELEGRAPH COMPANY DE has a total of 11 patent applications. Its first patent ever was published in 1914. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, telecommunications and basic communication technologies are EARL L KOCH HOLDING CORP, ARTHUR KENNETH MACRORIE and LIONEL GEORGE PRESTON.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 11 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Telecommunications | |
#3 | Basic communication technologies | |
#4 | Audio-visual technology | |
#5 | Digital networks |
# | Technology | |
---|---|---|
#1 | Electric discharge tubes | |
#2 | Transmission | |
#3 | Generation of oscillations | |
#4 | Loudspeakers and microphones | |
#5 | Digital information transmission |
# | Name | Total Patents |
---|---|---|
#1 | Forest Lee De | 10 |
#2 | Logwood Charles V | 1 |
Publication | Filing date | Title |
---|---|---|
US1230874A | Metallic audion. | |
US1299356A | Apparatus for use in radiocommunication. | |
US1218195A | System for transmitting communications. | |
US1309753A | Means for transforming mechanical vibrations into electrical vibrations. | |
US1201273A | Oscillation-generator. | |
US1201272A | Telegraph and telephone receiving system. | |
US1201271A | Oscillating audion. | |
US1190869A | Quench-spark discharger. | |
US1221035A | Apparatus for use in wire or radio communications. | |
US1221034A | Oscillating-current generator. | |
US1201270A | Oscillating-current generator. |