| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 8 | |
| #2 | United States | 4 | |
| #3 | Canada | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Finland | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Environmental technology | |
| #5 | Electrical machinery and energy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fredriksson Lars | 17 |
| #2 | Puester Neil H | 2 |
| #3 | Howlett Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2008315604A1 | Lifting sling system | |
| WO9723403A1 | Coupling link | |
| WO9723408A1 | Coupling device | |
| WO9723405A1 | A chain coupling assembly | |
| ZA9505004B | Coupling link | |
| EP0462963A1 | Swivel coupling device | |
| KR0151407B1 | Swivel coupling device |