| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | China | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | EAPO (Eurasian Patent Organization) | 1 | |
| #7 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spray Jeffery A | 12 |
| #2 | Dewhurst Peter | 1 |
| #3 | Walter David | 1 |
| #4 | Foss Doug | 1 |
| #5 | Apostal Michael | 1 |
| #6 | Sharpe Aaron | 1 |
| #7 | Wirz Holger | 1 |
| #8 | Hobson Steven | 1 |
| #9 | Mckeighan Peter | 1 |
| #10 | Siebanaler Shane | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN101802344A | Connections for expandable tubulars | |
| US6298914B1 | Wire-wrapped well screen |