Walter Eirich
12Patents
8h-index
8Co-inventors
65Inventor score
Filing activity: May 20, 1974 → Sep 6, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4997357A | Apparatus for treatment of power station residues | Emerging Cross-Sectional Technologies | 30 | Expired |
| US3956446A | Method of forming discrete pieces or pellets from meltable glass-producing mixtures | Chemistry; Metallurgy | 27 | Expired |
| US4681267A | Method of regenerating old casting sand | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4744829A | Process for producing agglomerates which are resistant to leaching out | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4854715A | Pressure-resistant mixer | Performing Operations; Transporting | 17 | Expired |
| US4624003A | Apparatus for heating electrically conductive bulk materials | Electricity | 15 | Expired |
| US4758372A | Method of producing lead paste for batteries | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4186592A | Method of measuring the moisture content in flowable materials and apparatus for carrying out the method | Performing Operations; Transporting | 11 | Expired |
| US4560283A | Apparatus for closing and continuously emptying the container of a treatment machine | Performing Operations; Transporting | 8 | Expired |
| US4569025A | Method of preparing foundrys and by measuring moisture and compressibility | Performing Operations; Transporting | 8 | Expired |
| US6926063B1 | Method for conditioning foundry moulding sand and a device therefor | Performing Operations; Transporting | 0 | Expired |
| US4562970A | Apparatus for opening and closing the outlet aperture of a processing machine | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.