| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | China | 6 | |
| #3 | WIPO (World Intellectual Property Organization) | 6 | |
| #4 | EPO (European Patent Office) | 5 | |
| #5 | United Kingdom | 5 | |
| #6 | Taiwan | 2 | |
| #7 | Canada | 1 | |
| #8 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Engines, pumps and turbines | |
| #3 | Measurement | |
| #4 | Medical technology | |
| #5 | Consumer goods | |
| #6 | Mechanical elements | |
| #7 | Telecommunications | |
| #8 | Digital networks |
| # | Technology | |
|---|---|---|
| #1 | Refrigerators | |
| #2 | Diagnosis and surgery | |
| #3 | Ice-boxes | |
| #4 | Rotary-pistons | |
| #5 | Compressed gas holders | |
| #6 | Pumps | |
| #7 | Measuring force, work and fluid pressure | |
| #8 | Digital information transmission | |
| #9 | Selecting | |
| #10 | Measuring electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Longsworth Ralph C | 16 |
| #2 | Hollabaugh Craig | 4 |
| #3 | Ralph C Longsworth | 3 |
| #4 | Sloan R Bruce | 3 |
| #5 | Gandla Santhosh Kumar | 3 |
| #6 | Jankowsky Frank P | 3 |
| #7 | Longsworth Ralph | 3 |
| #8 | Ash Gary S | 3 |
| #9 | Rustin Kurt | 2 |
| #10 | Ralph Cady Longsworth | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2021025868A1 | Helium compressor system with unmodified scroll compressor | |
| WO2020231613A1 | Bridge voltage inversion circuit for vacuum gauge and pressure gauge sensor having the voltage inversion circuit | |
| WO2020176495A1 | Thermal barrier between high-temperature sensor and electronics in a capacitance diaphragm gauge | |
| EP3701202A1 | Universal controller for integration of cryogenic equipment, requiring different control mechanisms, onto a single operating platform | |
| US2018023849A1 | Cryogenic expander with collar bumper for reduced noise and vibration characteristics | |
| US2017176070A1 | Helium compressor with dual after-coolers | |
| GB201608098D0 | Hybrid Brayton-Gifford-McMahon expander |