| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | Argentina | 1 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Earth drilling | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Church Kris L | 5 |
| #2 | Gandy John | 4 |
| #3 | Mauldin Charlie R | 3 |
| #4 | Ethridge Roger E | 3 |
| #5 | Gandy John B | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US6880220B2 | Method of manufacturing cold worked, high strength seamless CRA PIPE | |
| US6523615B2 | Electropolishing method for oil field tubular goods and drill pipe | |
| US6254146B1 | Thread form with multifacited flanks | |
| US5906400A | Galvanic corrosion protection system |