THORN RADIO VALVES AND TUBES L has a total of 14 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Canada, United States and Germany. Its main competitors in its focus markets electrical machinery and energy, telecommunications and basic communication technologies are SFD LAB INC, TELEDYNE MEC and BRUKER DALTONICS INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 4 | |
#2 | United States | 4 | |
#3 | Germany | 3 | |
#4 | Australia | 1 | |
#5 | United Kingdom | 1 | |
#6 | South Africa | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Telecommunications | |
#3 | Basic communication technologies | |
#4 | Measurement | |
#5 | Machines |
# | Technology | |
---|---|---|
#1 | Electric discharge tubes | |
#2 | Waveguides | |
#3 | Measuring electric variables | |
#4 | Resonators | |
#5 | Unspecified technologies |
# | Name | Total Patents |
---|---|---|
#1 | Inglis James | 8 |
#2 | Coleclough Robin C | 2 |
#3 | Charles Coleclough Robin | 1 |
#4 | Inglis J | 1 |
#5 | Watkiss John Edwin Robert | 1 |
Publication | Filing date | Title |
---|---|---|
US3626093A | Implosion-resistant cathode-ray tubes | |
GB1246166A | An attenuator | |
US3590303A | Color tube having shadow mask whose center-to-center aperture spacings increase radially outward from mask center | |
US3569990A | Implosion protection apparatus for cathode ray tubes | |
US3557306A | Cathode ray tubes with multiple convolution tension bands | |
CA882883A | Colour cathode ray tube with non-uniform phosphor dot spacing and non-uniform shadow mask aperture spacing | |
CA868541A | Reinforcing structure encircling a cathode ray tube | |
CA917227A | Implosion-resistant cathode ray tubes | |
CA868542A | Reinforcing structure encircling a cathode ray tube |