| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 105 | |
| #2 | United States | 60 | |
| #3 | Germany | 42 | |
| #4 | France | 29 | |
| #5 | Canada | 11 | |
| #6 | Sweden | 6 | |
| #7 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Machines | |
| #2 | Pumps | |
| #3 | Gearing | |
| #4 | Servomotors | |
| #5 | Unspecified technologies | |
| #6 | Marine propulsion | |
| #7 | Venting or aerating devices | |
| #8 | Shafts | |
| #9 | Aeroplanes | |
| #10 | Positive-displacement engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Andrews Thomas Desmond Hudson | 34 |
| #2 | Boydell Kenneth Raymond | 19 |
| #3 | Andrews Thomas D H | 17 |
| #4 | Flint John Christopher Eglingt | 14 |
| #5 | Spence Peter | 12 |
| #6 | Dowty George Herbert | 12 |
| #7 | Eeles Robert Charles | 9 |
| #8 | Walker Allen Chivers | 9 |
| #9 | Hudson Andrews Thomas Desmond | 8 |
| #10 | Shore Anthony George Lithgow | 7 |
| Publication | Filing date | Title |
|---|---|---|
| GB1374816A | Hydraulic swash plate pump | |
| US3732785A | Fluid pressure apparatus | |
| GB1344623A | Variable displacement pumps and motors | |
| US3717175A | Selector valves | |
| US3726089A | Fluid-pressure-operable systems | |
| US3730656A | Hydraulic apparatus | |
| US3774505A | Swash plate devices | |
| US3777492A | Hydraulic apparatus including variable delivery pumps | |
| US3636818A | Hydraulic apparatus | |
| US3690789A | Hydraulic apparatus | |
| US3669568A | Pump | |
| US3645171A | Swash plate device | |
| GB1340193A | Selector valves | |
| GB1332651A | Fluid-pressure-operable systems | |
| GB1341699A | Hydraulic displacement device | |
| GB1349143A | Hydraulic displacement device | |
| US3625191A | Fuel injection apparatus | |
| GB1279101A | Bladed rotors | |
| US3636820A | Hydraulic apparatus | |
| US3589837A | Hydraulic apparatus |