| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Hong Kong | 3 | |
| #3 | Australia | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Lubricating | |
| #4 | Mixing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Scragg Edgar Peter | 2 |
| Publication | Filing date | Title |
|---|---|---|
| AU1533576A | Fluid flow control valve | |
| GB1464399A | Fluid flow control valve | |
| GB1425630A | Fluid flow control valve |