HOBSON LTD H M has a total of 394 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets transport, mechanical elements and engines, pumps and turbines are GOODRICH ACTUATION SYSTEMS SAS, CYRIL DANIEL WATSON and CIE GEN EQUIP AERONAUTIQUE.
# | Country | Total Patents | |
---|---|---|---|
#1 | United Kingdom | 155 | |
#2 | United States | 89 | |
#3 | France | 66 | |
#4 | Germany | 48 | |
#5 | Canada | 29 | |
#6 | Sweden | 4 | |
#7 | Switzerland | 2 | |
#8 | Denmark | 1 |
# | Industry | |
---|---|---|
#1 | Transport | |
#2 | Mechanical elements | |
#3 | Engines, pumps and turbines | |
#4 | Machines | |
#5 | Measurement | |
#6 | Machine tools | |
#7 | Control |
# | Technology | |
---|---|---|
#1 | Aeroplanes | |
#2 | Servomotors | |
#3 | Gas-turbine plants | |
#4 | Unspecified technologies | |
#5 | Parachutes | |
#6 | Measuring volume | |
#7 | Gearing | |
#8 | Grinding or polishing devices | |
#9 | Jet-propulsion plants | |
#10 | Systems controlling non-electric variables |
# | Name | Total Patents |
---|---|---|
#1 | Westbury Roy | 46 |
#2 | Roy Westbury | 24 |
#3 | Smith Charles Philip | 23 |
#4 | Mccourty William Donald | 23 |
#5 | Sidney Greenland Leonard | 22 |
#6 | Greenland Leonard Sidney | 21 |
#7 | Philip Smith Charles | 17 |
#8 | Glaze Stanley George | 15 |
#9 | Smith Charles P | 13 |
#10 | Marshall David | 13 |
Publication | Filing date | Title |
---|---|---|
US3727958A | Self-locking coupling | |
US3712148A | Ball screw jack | |
US3714784A | Fuel supply systems for jet aircraft engines | |
US3655134A | Jet engines for aircraft | |
DE2040574A1 | Fuel supply system for a gas turbine | |
DE2040575A1 | Device for keeping a flow constant in a line | |
DE2039174A1 | Freewheel device | |
DE2039175A1 | Brake for a hydraulically driven shaft | |
US3643428A | Fuel control system for a gas turbine engine | |
US3638672A | Valves | |
US3610379A | Double-acting freewheel for the protection of hydraulic motors | |
US3631944A | Plural drive with differential brakes | |
US3635242A | Valve seizure protection devices | |
US3640092A | Torque limiter | |
US3653226A | Bi-directional torque limiters | |
US3692260A | Damping devices | |
GB1283483A | An improved ball screw jack | |
GB1293672A | Improvements in fuel supply systems for aircraft gas turbine jet engines | |
GB1271260A | Overheat detector | |
GB1272859A | Improvements in position control servo systems |