| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | Australia | 3 | |
| #3 | United States | 3 | |
| #4 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Explosive charges | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mesia Charles R | 4 |
| #2 | Callister Richard M | 2 |
| #3 | Mackey Illa J | 2 |
| #4 | Mesia Charles Raymond | 1 |
| #5 | Callister R | 1 |
| #6 | Langer Robert J | 1 |
| #7 | Langer Robert John | 1 |
| #8 | Langer R | 1 |
| #9 | Mackey Illa Jean | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1106661A | Blast hole liner | |
| US4250811A | Blast hole liner | |
| US4182242A | Blast hole liner | |
| US3881417A | Blast hole liner with integral weight pocket | |
| ZA7303529B | Blast-hole liner | |
| CA949388A | Blast-hole liner |