| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Air-conditioning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Burkit John W | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US5201550A | Pipe coupling system with thrust restraint | |
| AU7909791A | Pipe coupling system for high temperature/pressure | |
| US5092633A | Pipe coupler with thrust restraint | |
| US5002317A | Internal expansion coupling device | |
| US4927189A | Internal expansion coupling device |