| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | Australia | 1 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | United States | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Cyclically operating valves | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stidworthy Frederick Michael | 6 |
| #2 | Stidworthy Frederick M | 1 |
| #3 | Stidworthy Frederick Michael B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8821295D0 | Arrangements for converting rotary motion to linear motion | |
| GB8512521D0 | Recovery of alumina from aluminosilicates | |
| GB8419787D0 | Poppet valve arrangements | |
| GB8414998D0 | Recovery of silica from silicate | |
| GB8412609D0 | Recovery of alumina from aluminosilicates |