| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | Brazil | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Japan | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Cleaning heat-exchanger internal surfaces | |
| #2 | Cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Barry Peter Lalor | 7 |
| #2 | Barry Peter L | 5 |
| #3 | Vowles Robert W | 2 |
| #4 | Barri Peter Lalor | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4898197A | Cleaning of tubes using projectiles | |
| AU3218784A | Method and apparatus for cleaning pipes tubes etc. | |
| CA1214004A | Method of cleaning pipes, tubes etc. | |
| AU1816583A | Pig, launcher and catcher for tube or pipe cleaning |