Ronald E. Pfeiffer
13Patents
8h-index
9Co-inventors
61Inventor score
Filing activity: Aug 30, 1978 → Mar 30, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4318680A | Spinnerette plate having multiple capillaries per counterbore for melt spinning fusion melts of acrylonitrile polymer and water | Textiles; Paper | 12 | Expired |
| US4278415A | Apparatus for melt spinning hollow fibers | Textiles; Paper | 12 | Expired |
| US4261945A | Method for providing shaped fiber | Textiles; Paper | 11 | Expired |
| US4316714A | Apparatus for preparing open structure fibers | Textiles; Paper | 10 | Expired |
| US4220616A | Melt-spinning acrylonitrile polymer fiber using spinnerette of high orifice density | Textiles; Paper | 10 | Expired |
| US4220617A | Process for melt-spinning acrylonitrile polymer fiber | Textiles; Paper | 9 | Expired |
| US4301107A | Melt-spinning a plurality of acrylonitrile polymer fibers | Textiles; Paper | 8 | Expired |
| US4346053A | Process for melt-spinning hollow fibers | Textiles; Paper | 8 | Expired |
| US4254076A | Melt-spinning acrylonitrile polymer fiber using spinnerette plate with multiple capillaries per counterbore | Textiles; Paper | 7 | Expired |
| US4394339A | Process for preparing open structure fibers | Textiles; Paper | 7 | Expired |
| US5130195A | Reversible crimp bicomponent acrylic fibers | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5232647A | Process of making bicomponent acrylic fibers having reversible crimp | Textiles; Paper | 4 | Expired |
| US4296175A | Hollow acrylonitrile polymer fiber | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.