| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | WIPO (World Intellectual Property Organization) | 8 | |
| #3 | EPO (European Patent Office) | 7 | |
| #4 | Canada | 6 | |
| #5 | Australia | 4 | |
| #6 | China | 4 | |
| #7 | Hong Kong | 4 | |
| #8 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Pumps | |
| #4 | Unspecified technologies | |
| #5 | Steam traps | |
| #6 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cornwell James P | 40 |
| #2 | Cornwell James | 1 |
| #3 | Crays Mark Alan | 1 |
| #4 | Crays Mark A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2008063551A1 | Head Discharging Compressor System | |
| US2006071189A1 | Pressure relief valve | |
| US2007056636A1 | Spring actuated check valve | |
| US2005229979A1 | Elastomeric check valve | |
| CN1777755A | Air compressor with inlet control mechanism and automatic inlet control mechanism | |
| US2004141862A1 | Air compressor unit inlet control | |
| US6698446B2 | Check valve | |
| AU7476000A | Tube fitting | |
| WO0000764A1 | Automatic drain valve |