| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 3 | |
| #3 | Australia | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Brazil | 1 | |
| #7 | China | 1 | |
| #8 | Israel | 1 | |
| #9 | Republic of Korea | 1 | |
| #10 | Poland | 1 | |
| #11 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Earth drilling | |
| #3 | Special machines | |
| #4 | Shaping of plastics | |
| #5 | Certain plastics | |
| #6 | Positive-displacement engines | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wood Steven M | 17 |
| #2 | Spencer Brian E | 14 |
| #3 | Hoechst Marion Roussel Inc | 1 |
| #4 | O'Malley Gerard J | 1 |
| #5 | Craig Gordon W | 1 |
| #6 | Palermo Mark G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2008000083A1 | Process for lining a fluid helical device stator | |
| EP1406016A1 | Progressive cavity pumps using composite materials | |
| CA2397164A1 | Progressive cavity helical device | |
| US6183226B1 | Progressive cavity motors using composite materials | |
| US5759019A | Progressive cavity pumps using composite materials | |
| US5417281A | Reverse Moineau motor and pump assembly for producing fluids from a well |