| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Servomotors | |
| #2 | Accessories for machine tools | |
| #3 | Pumps | |
| #4 | Cyclically operating valves | |
| #5 | Unspecified technologies | |
| #6 | Venting or aerating devices | |
| #7 | Unspecified technologies | |
| #8 | Supplying combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aborn George P | 10 |
| #2 | Bourne Phillips P | 2 |
| #3 | Laval George De | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1116341A | Pump-valve. | |
| US1177588A | Engine-valve. | |
| US1102181A | Engine-valve. | |
| GB191224648A | Improvements in Engine Valves and Valve Gear. | |
| US1102180A | Engine-valve. | |
| US1055997A | Engine-valve. | |
| US1055995A | Valve. | |
| US1055996A | Valve. | |
| US1055994A | Engine-valve. | |
| US1041939A | Air compressor and pump. | |
| US1120015A | Engine for air-pumps. | |
| US892974A | Air-pump. | |
| US901945A | Air-pump. | |
| US871349A | Air-pump. |