| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | Canada | 3 | |
| #3 | Norway | 3 | |
| #4 | United States | 3 | |
| #5 | WIPO (World Intellectual Property Organization) | 3 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Swimming pools | |
| #3 | Lifting and pushing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Desai Vinod | 8 |
| #2 | Zahn Baldwin | 6 |
| #3 | Donnally Robert B | 5 |
| #4 | Donnally Robert Benjamin | 4 |
| #5 | Tesch Richard E | 3 |
| Publication | Filing date | Title |
|---|---|---|
| WO9711243A1 | Telescoping derrick | |
| US5490364A | Telescopic flare pipe tower | |
| US5450695A | Telescoping derrick | |
| US5423390A | Pipe racker assembly | |
| CA2002983A1 | Telescopic drilling derrick apparatus | |
| GB8925331D0 | Apparatus and method for engaging beams |