OWEN HARRIES JOHN HENRY has a total of 16 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and basic communication technologies are FRANCOIS JOSEPH GERARD VAN DEN, VACUUM SCIENCE PRODUCTS LTD and MATSUSHITA DISPLAY DEVICES GER.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 16 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Audio-visual technology | |
#3 | Basic communication technologies | |
#4 | Telecommunications |
# | Technology | |
---|---|---|
#1 | Electric discharge tubes | |
#2 | Television | |
#3 | Demodulation | |
#4 | Waveguides |
# | Name | Total Patents |
---|---|---|
#1 | Owen Harries John Henry | 16 |
Publication | Filing date | Title |
---|---|---|
US2415349A | Electron discharge tube for ultra high frequencies | |
US2401637A | Electron discharge tube | |
US2396949A | Electron discharge tube | |
US2125719A | Electron discharge tube | |
US2155824A | Electron discharge device | |
US2125003A | Electron discharge tube circuits | |
US2038360A | Electric discharge tube | |
US2045527A | Electron discharge tube | |
US2045526A | Multielectrode tube apparatus | |
US2045525A | Method of producing and controlling a space discharge | |
US1921464A | Method and apparatus for the recording and projection of pictures, images, and the like |