| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Switzerland | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Austria | 1 | |
| #6 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clarke Ronald Albert William | 7 |
| #2 | Albert William Clarke Ronald | 2 |
| #3 | William Clarke Ronald Albert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8926838D0 | Process for inserting a rumble strip in a road | |
| GB8803086D0 | Aircraft runway with grooved surface | |
| GB8803087D0 | Apparatus for reflex-percussive cutting of concrete etc. |