| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Marocco Gregory M | 13 |
| #2 | Colletti Gregory | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009107761A1 | Exhaust sound and emission control systems | |
| US2008093162A1 | Gas flow sound attenuation device | |
| US2005279571A1 | Exhaust sound and emission control systems | |
| AU2003275097A8 | Exhaust sound and emission control systems | |
| EP1108121A1 | Catalytic converter and resonator combination | |
| WO0010690A1 | Pre-catalytic converter and catalytic converter combination | |
| WO0011331A1 | Reciprocating engine combustion chamber |