| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | United States | 7 | |
| #3 | Australia | 6 | |
| #4 | WIPO (World Intellectual Property Organization) | 5 | |
| #5 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Thermal processes | |
| #6 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tripp Dale S | 11 |
| #2 | Horne Timothy P | 7 |
| #3 | Engelmann Lester | 7 |
| #4 | Bertagna Peter J | 3 |
| #5 | Englemann Lester | 2 |
| #6 | Veiga Louie D | 1 |
| #7 | Cole Dan W | 1 |
| #8 | Sordello David L | 1 |
| #9 | Engstrom Carl A | 1 |
| #10 | Hofmann Steven Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2003202960A1 | Testing valve assemblies | |
| US6325090B1 | Backflow preventer assembly | |
| US6192933B1 | Backflow prevention assembly | |
| US6220519B1 | Sanitary steam trap | |
| US6257551B1 | Valve stem extension |