Robert Fricker
12Patents
4h-index
5Co-inventors
45Inventor score
Filing activity: Sep 26, 1984 → Aug 15, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4680259A | Analytical element and method for colorimetric determination of total cholesterol | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4867428A | Device for clamping fireproof plates in metal frames of slide-valve shutters | Performing Operations; Transporting | 10 | Expired |
| US4848604A | Slide gate valve at the nozzle of a vessel containing molten metal | Performing Operations; Transporting | 9 | Expired |
| US4658994A | Apparatus for replaceably mounting a pouring tube | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4650101A | Sliding closure unit with easily replaceable lower stationary refractory plate | Performing Operations; Transporting | 4 | Expired |
| US5139237A | Metal member with annular centering surface | Performing Operations; Transporting | 3 | Expired |
| US4697723A | Tensioning structure for a sliding closure unit | Performing Operations; Transporting | 3 | Expired |
| US5074442A | Refractory plate unit with annular centering surface and sliding closure unit assembly incorporating the same | Performing Operations; Transporting | 3 | Expired |
| US4729497A | Slide unit and partial plate member thereof for use in a sliding closure unit | Performing Operations; Transporting | 3 | Expired |
| US4601416A | Closure plate and sliding closure unit | Performing Operations; Transporting | 3 | Expired |
| US5129555A | Rerouting mechanism for transferring movement of a driving member to a movable plate of a slide gate | Performing Operations; Transporting | 1 | Expired |
| US5044532A | Slide unit and partial plate member thereof for use in a sliding closure unit | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.