| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 14 | |
| #2 | Australia | 1 | |
| #3 | Denmark | 1 | |
| #4 | United States | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Telfer George | 8 |
| Publication | Filing date | Title |
|---|---|---|
| GB9600103D0 | Improvements to offshore drilling apparatus | |
| GB9525044D0 | Plugs for downhole tools | |
| GB9522709D0 | Improvements in or relating to protective arrangements | |
| GB9515419D0 | Activating means for drilling apparatus | |
| GB9510923D0 | Liner hanger apparatus | |
| GB9416687D0 | Downhole packer | |
| GB9525208D0 | Improvements in or relating to downhole tool assemblies | |
| GB9316677D0 | Borehole liner | |
| GB9217537D0 | Improvements in or relating to protective arrangements | |
| US5129454A | Multi-string packers | |
| GB9024317D0 | Multi-string packer | |
| GB9005213D0 | Multi-string packers | |
| GB8927478D0 | Multi-string packers |