| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | France | 3 | |
| #3 | South Africa | 2 | |
| #4 | Australia | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Denmark | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Italy | 1 | |
| #9 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cleaver R D | 2 |
| #2 | Cleaver Roy Dennis | 2 |
| #3 | Sherrington J | 1 |
| #4 | Morgan Brian | 1 |
| #5 | Sherrington Jeffrey William | 1 |
| #6 | Bertie Dennis Ivan | 1 |
| #7 | Cleaver R | 1 |
| #8 | Bertie D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2357401A1 | CONTROL VALVE FOR THE DIRECTION OF FLOW OF A FLOW | |
| GB1436734A | Releasable couplings for tubes |