| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | Norway | 3 | |
| #3 | United States | 3 | |
| #4 | Australia | 2 | |
| #5 | Canada | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Chemical engineering | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Cleaning | |
| #3 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gazewood Michael J | 16 |
| Publication | Filing date | Title |
|---|---|---|
| WO0066877A1 | Ribbed sealing element and method of use | |
| CA2369745A1 | Venturi wash apparatus and method | |
| EP0996806A1 | Method and apparatus for moving a piston | |
| US5947202A | Method and apparatus for engaging an object |