Bernhard Spreckelmeyer
7Patents
3h-index
18Co-inventors
54Inventor score
Filing activity: Jul 15, 1975 → Jul 26, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4010245A | Production of hydrogen fluoride and calcium sulfate | Chemistry; Metallurgy | 5 | Expired |
| US4078047A | Production of hydrofluoric acid from phosphate-containing fluorspar | Chemistry; Metallurgy | 5 | Expired |
| US4150102A | Purifying hydrofluoric acid | Performing Operations; Transporting | 4 | Expired |
| US5250274A | Process for the production of sodium dichromate | Chemistry; Metallurgy | 2 | Expired |
| US5068015A | Electrochemical process for the production of chromic acid | Chemistry; Metallurgy | 1 | Expired |
| US5667759A | Method for manufacturing alkali chromates from chromium ore | Chemistry; Metallurgy | 0 | Expired |
| US5505918A | Method for manufacturing alkali chromates from chromium ore | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.