Frank Schrumpf
13Patents
3h-index
26Co-inventors
56Inventor score
Filing activity: Nov 21, 1997 → May 29, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6015447A | Cobalt metal agglomerates, a method of producing them and their use | Emerging Cross-Sectional Technologies | 7 | Expired |
| US9856546B2 | Metal powder | Chemistry; Metallurgy | 6 | Active |
| US7048843B2 | Method for producing metal hydroxides or alkaline metal carbonates | Chemistry; Metallurgy | 4 | Expired |
| US6277305A | Cobaltous oxide containing finely-dispersed metallic cobalt, methods of producing the same and use thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6752918B1 | Method for producing nickel hydroxides | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6699453B1 | Spheroidally agglomerated basic cobalt(II) carbonate and spheroidally agglomerated cobalt(II) hydroxide, process for their production and their use | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7563431B2 | Nickel hydroxide and method for producing same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8449855B2 | Inorganic compounds | Emerging Cross-Sectional Technologies | 0 | Active |
| US8216533B2 | Method for producing ammonium paratungstate hydrates and ammonium paratungstate decahydrate | Emerging Cross-Sectional Technologies | 0 | Active |
| US8052956B2 | Tungstic acid powder consisting of spherical tungsten particles and method for producing same | Emerging Cross-Sectional Technologies | 0 | Active |
| US6183621A | Basic cobaltous carbonates, process for preparing the same and their use | Chemistry; Metallurgy | 0 | Expired |
| US8454931B2 | Tungstic acid powder consisting of spherical tungsten particles and method for producing same | Emerging Cross-Sectional Technologies | 0 | Active |
| US8440161B2 | Ammonium paratungstate hydrates and ammonium paratungstate decahydrate | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.