| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | Czechia | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Hungary | 1 | |
| #8 | Poland | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grandage Ronald Ellis | 9 |
| #2 | Grandage Ronald E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB0018222D0 | Valves | |
| CZ8098A3 | Shut-off fitting |