| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Norway | 3 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Scaffolding | |
| #2 | Unspecified technologies | |
| #3 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Braithwaite Dennis | 5 |
| #2 | Kitchen Roger Michael | 5 |
| #3 | Kitchen Roger M | 4 |
| #4 | Lister Frank | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US4193708A | Girder clamp | |
| GB1600696A | Scaffold tube | |
| GB1598788A | Girder fittings | |
| GB1585685A | Girder roller fittings |