Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995896 | Sealing method, apparatus and system | Nicholas John Ryan, Iain Beveridge Chirnside | 2021-05-04 |
| 4887867 | Ranging drum shearers | Alexander Porteous | 1989-12-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995896 | Sealing method, apparatus and system | Nicholas John Ryan, Iain Beveridge Chirnside | 2021-05-04 |
| 4887867 | Ranging drum shearers | Alexander Porteous | 1989-12-19 |