WALKER HAROLD R has a total of 12 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States and EPO (European Patent Office). Its main competitors in its focus markets digital networks, measurement and electrical machinery and energy are COMMERCIAL CABLE COMPANY, TIMI TECHNOLOGIES CO LTD and DIALOGIC NETWORKS ISRAEL LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | EPO (European Patent Office) | 3 |
# | Industry | |
---|---|---|
#1 | Digital networks | |
#2 | Measurement | |
#3 | Electrical machinery and energy | |
#4 | Basic communication technologies | |
#5 | Machines | |
#6 | Transport |
# | Technology | |
---|---|---|
#1 | Digital information transmission | |
#2 | Unspecified technologies | |
#3 | Electric discharge tubes | |
#4 | Code conversion | |
#5 | Measuring light | |
#6 | Measuring electric variables | |
#7 | Parachutes |
# | Name | Total Patents |
---|---|---|
#1 | Walker Harold R | 12 |
Publication | Filing date | Title |
---|---|---|
US2007237218A1 | Apparatus and method for ultra narrow band communications | |
US7424065B2 | Apparatus and method for ultra narrow band wireless communications | |
US7268638B2 | Apparatus and method for data rate multiplication | |
US5185765A | High speed data communication system using phase shift key coding | |
EP0325005A1 | High speed binary data communication system | |
US4742532A | High speed binary data communication system | |
US3040205A | Electrostatic vidicon | |
US2984747A | Radiant energy detecting and collecting apparatus | |
US2984786A | Phase comparator | |
US3016716A | Liquid oxygen cooler for airborne infrared cells |