Altech Controls Corporation
10Patents
0Active
10Granted
29Portfolio score
Filing activity: Jan 21, 1988 → Mar 15, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4951475A | Method and apparatus for controlling capacity of a multiple-stage cooling system | Emerging Cross-Sectional Technologies | 69 | Expired |
| US5692387A | Liquid cooling of discharge gas | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6161394A | Method and apparatus for condensing and subcooling refrigerant | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6705094B2 | Thermally isolated liquid evaporation engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6105379A | Self-adjusting valve | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6134796A | Aircraft navigational plotter | Physics | 10 | Expired |
| US6857287B1 | Refrigeration cycle | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6338254B1 | Refrigeration sub-cooler and air conditioning dehumidifier | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6928825B2 | Thermally isolated liquid evaporation engine | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6442967B1 | Refrigeration system with coaxial suction and liquid tubing | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.