| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | Ireland | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hurt John Arthur | 4 |
| #2 | Hurt John A | 2 |
| #3 | Brown John Callam Allan Temple | 2 |
| #4 | Templeton Brown John Callam Al | 1 |
| #5 | Hurt John Artur | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8730214D0 | Drills | |
| IE861466L | Rock drill | |
| GB8514505D0 | Rock drills | |
| EP0099594A2 | Rock drills | |
| EP0081897A1 | Percussive drills | |
| US4487274A | Rock drills | |
| GB1596308A | Anchor hole drilling |