Uni-Screw Limited
8Patents
0Active
8Granted
28Portfolio score
Filing activity: Jul 15, 1975 → Jun 20, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4364714A | Process to supercharge and control a single screw compressor | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4261169A | Method for converting thermal energy into mechanical energy and a machine for carrying out said method | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6755748B2 | Screw head formation | Physics | 9 | Expired |
| US4321022A | Inter-engaging threaded rotor and pinion machine with multi-edged pinion tooth flanks | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4342548A | Screw having a V-shaped groove profile for cooperating with a pinion in a compression or expansion machine | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4373866A | Process to control the delivery of a single screw compressor | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4043704A | Double-acting rotary expansible chamber pump adaptable to series or parallel operation | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4222691A | Method for machining the screw of a compression or expansion machine and a device for the application of said method | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.