| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 8 | |
| #2 | France | 6 | |
| #3 | Canada | 4 | |
| #4 | Sweden | 4 | |
| #5 | Australia | 1 | |
| #6 | Germany | 1 | |
| #7 | Spain | 1 | |
| #8 | Netherlands | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hickman Ronald Price | 6 |
| #2 | Luff Brian Anthony | 6 |
| #3 | Rossell Edgar Ronald | 6 |
| #4 | Derek John Charles Bernard | 4 |
| #5 | Hickman Ronald P | 4 |
| #6 | Luff Brian A | 4 |
| #7 | Bernard Derek J C | 4 |
| #8 | Rossell Edgar R | 4 |
| #9 | Bernard Derek John Charles | 3 |
| #10 | Hickman Designs Ltd | 3 |
| Publication | Filing date | Title |
|---|---|---|
| CA1049471A | Ladder | |
| AU7905575A | Ladder | |
| GB1508436A | Ladders | |
| GB1508432A | Ladders | |
| GB1508434A | Ladders | |
| GB1508433A | Ladders | |
| GB1508435A | Ladders | |
| GB1487729A | Drill guides | |
| GB1508431A | Ladders | |
| GB1487728A | Drill guides |