| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Germany | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Engines, pumps and turbines | |
| #3 | Chemical engineering | |
| #4 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Longsworth Ralph C | 8 |
| #2 | Dunn Stephen | 4 |
| #3 | Longsworth Ralph | 2 |
| #4 | Seitz Eric Robert | 2 |
| #5 | Sloan R Bruce | 1 |
| #6 | Borchers John | 1 |
| #7 | Ralph Longsworth | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2019309994A1 | Heat station for cooling a circulating cryogen | |
| WO2016196898A1 | Gas balanced engine with buffer | |
| US2016216010A1 | HYBRID GIFFORD-McMAHON - BRAYTON EXPANDER | |
| US2017175743A1 | Cold start helium compressor | |
| US2017176055A1 | Dual helium compressors |