Scientific Process & Research, Inc.
8Patents
0Active
8Granted
24Portfolio score
Filing activity: Jul 7, 1975 → Jun 1, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4387997A | Plasticating extruder screw conveyors | Performing Operations; Transporting | 28 | Expired |
| US4171195A | Cross-head die with volumetric flow compensation means | Performing Operations; Transporting | 25 | Expired |
| US4290702A | Plasticating apparatus for molding devices | Performing Operations; Transporting | 24 | Expired |
| US4472059A | Reduced wear plasticating extruder screw conveyors | Performing Operations; Transporting | 24 | Expired |
| US4637790A | Multiple-stage plasticating extruders | Performing Operations; Transporting | 22 | Expired |
| US4309114A | Method for attaining maximum production effectiveness in a plasticating extruder | Performing Operations; Transporting | 16 | Expired |
| US5056925A | Extruder screws and method for accelerating melting in plasticating extruders | Performing Operations; Transporting | 12 | Expired |
| US4049245A | Apparatus and method for preparing a plasticated material | Performing Operations; Transporting | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.