| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Norris Thomas R | 12 |
| #2 | Watts J Alan | 3 |
| #3 | Lockwood Hanford N Jr | 1 |
| #4 | Lockwood Hanford N | 1 |
| #5 | Lockwood Jr Hanford N | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2008121301A1 | Externally mounted vortex generators for flow duct passage | |
| WO9841739A1 | Method and apparatus for enhancing gas turbo machinery flow | |
| US5276291A | Acoustic muffler for high volume fluid flow utilizing Heimholtz resonators with low flow resistance path | |
| US5188510A | Method and apparatus for enhancing gas turbo machinery flow | |
| US4953659A | Fluid blow-off muffler | |
| US4353434A | Fluid blow-off muffler |