Richard A. Scheithauer
20Patents
6h-index
9Co-inventors
58Inventor score
Filing activity: Aug 18, 1980 → Sep 11, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4348224A | Method for producing cobalt metal powder | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4395278A | Method for producing cobalt metal powder | Chemistry; Metallurgy | 10 | Expired |
| US4804407A | Method for recovering cobalt from hexammine cobaltic (111) solutions | Chemistry; Metallurgy | 9 | Expired |
| US4329169A | Method for producing cobalt metal powder | Performing Operations; Transporting | 8 | Expired |
| US4381937A | Method for producing cobalt metal powder | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4452633A | Method for producing cobalt metal powder | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4454098A | Process for reclaiming tungsten from a hazardous waste | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4612039A | Production of pure cobalt metal powder | Chemistry; Metallurgy | 5 | Expired |
| US4623534A | Method for producing ammonium paratungstate | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4594230A | Recovery of cobalt | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4608235A | Recovery of cobalt | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4624844A | Process for producing ammonium paratungstate | Chemistry; Metallurgy | 3 | Expired |
| US4448755A | Method for removal of tin from ammonium tungstates | Chemistry; Metallurgy | 3 | Expired |
| US4741886A | Process for recovering tungsten from tungsten bearing material containing arsenic | Chemistry; Metallurgy | 3 | Expired |
| US4690710A | Process for producing cobalt metal powder | Chemistry; Metallurgy | 2 | Expired |
| US4608084A | Recovery of cobalt and chromium | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4626425A | Recovery of tungsten from ammoniacal solutions | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4432950A | Recovery of refractory metal values from scrap cemented carbide | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4552729A | Method for removing tin from sodium tungstate solution | Chemistry; Metallurgy | 1 | Expired |
| US4965116A | Method for separation of cobalt from nickel | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.