Cryogenic Group, Inc.
12Patents
2Active
12Granted
35Portfolio score
Filing activity: Jul 9, 1982 → Sep 7, 2007 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5511955A | Cryogenic pump | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6592654B2 | Liquid extraction and separation method for treating fluids utilizing flow swirl | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5575626A | Cryogenic pump | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6986266B2 | Process and apparatus for LNG enriching in methane | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5137052A | Valve position indicator | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4478711A | Method and apparatus for separating dry magnetic material | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4609109A | Superconducting magnetic separators | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7201002B1 | Anti-weathering apparatus method for liquid and vapor storage systems | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4784760A | Magnetic separators | Performing Operations; Transporting | 5 | Expired |
| US6925818B1 | Air cycle pre-cooling system for air separation unit | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7771509B1 | Magnetic oxygen concentrator for air streams | Emerging Cross-Sectional Technologies | 3 | Active |
| US7603867B2 | Process and system to produce multiple distributable products from source, or imported LNG | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.