| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 6 | |
| #2 | Canada | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | United States | 3 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | South Africa | 2 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mcinnes Malcolm Bicknell | 10 |
| #2 | Moir Frederick Graham | 4 |
| #3 | Moir Fredrich Graham | 3 |
| #4 | Crocker Roger Arthur | 3 |
| #5 | Moir Fredrich G | 2 |
| #6 | Mcinnes Malcolm B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AUPN701695A0 | Sealing collar for downhole hammer | |
| AUPM999094A0 | Sealing collar for downhole hammer | |
| AU6419694A | Percussion drilling improvements | |
| CA2159903A1 | Rotary percussive core drill bit | |
| EP0692061A1 | Percussion drilling improvements | |
| AU6419594A | Rotary percussive core drill bit | |
| WO9323651A1 | Improved drilling arrangement and method | |
| AU3817893A | Liquid-driven downhole hammer drill |