Allen J. Bartlett
49Patents
14h-index
49Co-inventors
81Inventor score
Filing activity: May 22, 1981 → Nov 16, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4679401A | Temperature control of cryogenic systems | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5060481A | Method and apparatus for controlling a cryogenic refrigeration system | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4796433A | Remote recondenser with intermediate temperature heat sink | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US4438632A | Means for periodic desorption of a cryopump | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4766741A | Cryogenic recondenser with remote cold box | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4449373A | Reduced vacuum cryopump | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5517823A | Pressure controlled cryopump regeneration method and system | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5375424A | Cryopump with electronically controlled regeneration | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4356701A | Cryopump | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4555907A | Cryopump with improved second stage array | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7127901B2 | Helium management control system | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4966016A | Cryopump with multiple refrigerators | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4446702A | Multiport cryopump | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5782096A | Cryopump with improved shielding | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6155059A | High capacity cryopump | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5862671A | Purge and rough cryopump regeneration process, cryopump and controller | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5211022A | Cryopump with differential pumping capability | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5156007A | Cryopump with improved second stage passageway | Emerging Cross-Sectional Technologies | 11 | Expired |
| US10156386B2 | System and method for cryogenic cooling | Emerging Cross-Sectional Technologies | 11 | Active |
| US5301511A | Cryopump and cryopanel having frost concentrating device | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7788942B2 | Helium management control system | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US5906102A | Cryopump with gas heated exhaust valve and method of warming surfaces of an exhaust valve | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US8261562B2 | Helium management control system | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US4949546A | Compact heat exchanger for a cryogenic refrigerator | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4454722A | Cryopump | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.