| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 23 | |
| #2 | WIPO (World Intellectual Property Organization) | 8 | |
| #3 | United States | 6 | |
| #4 | Australia | 4 | |
| #5 | Canada | 2 | |
| #6 | African Intellectual Property Organization | 2 | |
| #7 | China | 1 | |
| #8 | EAPO (Eurasian Patent Organization) | 1 | |
| #9 | EPO (European Patent Office) | 1 | |
| #10 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Punching metal | |
| #5 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Metcalfe Paul David | 25 |
| #2 | Campbell Alasdair | 10 |
| #3 | Simpson Neil Andrew Abercrombi | 8 |
| #4 | Moyes Peter Barnes | 5 |
| #5 | Metcalf Paul David | 1 |
| #6 | Campbell Alasdrir | 1 |
| #7 | Scott Brian | 1 |
| #8 | Metcalfe Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB0006215D0 | Straddle | |
| GB9928941D0 | Tubing anchor | |
| GB9923975D0 | Downhole sealing | |
| GB9921557D0 | Downhole apparatus | |
| CA2546937A1 | Connector for expandable well screen | |
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| GB9904380D0 | Drilling method | |
| CA2551006A1 | Expandable downhole tubing | |
| GB9817246D0 | Connector | |
| GB9801332D0 | Expandable tubing cover | |
| GB9723338D0 | Coupling | |
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| GB9714651D0 | Downhole tubing | |
| GB9705928D0 | Connector | |
| GB9816834D0 | Tubing connector |