| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes | |
| #3 | Measurement | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Rotary pistons | |
| #3 | Refrigerators | |
| #4 | Pumps | |
| #5 | Measuring force, work and fluid pressure | |
| #6 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | West William G | 7 |
| #2 | Boehler Duane H | 6 |
| #3 | Plasek Ronald A | 6 |
| #4 | Ramachandran Ajit | 6 |
| #5 | Sliger Keith | 6 |
| #6 | Borre Robert | 1 |
| #7 | Vergara Ralph | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2007113575A1 | Valve manifold assembly | |
| US2006228246A1 | Vacuum pump | |
| US2006228242A1 | Vacuum pump | |
| US7073346B2 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor | |
| US2004020233A1 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus |