| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | Norway | 2 | |
| #4 | United States | 2 | |
| #5 | Australia | 1 | |
| #6 | Canada | 1 | |
| #7 | France | 1 | |
| #8 | Ireland | 1 | |
| #9 | India | 1 | |
| #10 | Mexico | 1 | |
| #11 | Netherlands | 1 | |
| #12 | Philippines | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Chemical engineering | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Pipe-line systems | |
| #2 | Earth drilling | |
| #3 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Buls Ronald L | 7 |
| #2 | Gilcrease James P | 6 |
| #3 | Martin Robert E | 2 |
| #4 | Martin Robert Eugene | 2 |
| #5 | Hagan Jr Ernest P | 1 |
| #6 | Hagan Ernest Palmer Jr | 1 |
| #7 | Gilcrease James L | 1 |
| #8 | Hagan Ernest P Jr | 1 |
| #9 | Gilcrease James Perry | 1 |
| #10 | Hagan Jr Ernest Palmer | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4519815A | Slug-catching method and apparatus | |
| US4160652A | Method and apparatus for handling the fluids in a two-phase flow pipeline system |