Daniel Urffer
14Patents
6h-index
17Co-inventors
63Inventor score
Filing activity: Aug 6, 1985 → Dec 20, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5871547A | Hip joint prosthesis having a zirconia head and a ceramic cup | Human Necessities | 76 | Expired |
| US5502012A | Fused ceramic beads | Chemistry; Metallurgy | 22 | Expired |
| US4607697A | Propping agent based on zirconia and silica for deep geological fractures | Fixed Constructions | 16 | Expired |
| US4946665A | Reactive zirconium oxide and its preparation | Chemistry; Metallurgy | 13 | Expired |
| US4910174A | Thin ceramic articles obtained by fusing and casting in a mold a composition of the system Al.sub.2 O-ZrO.sub.2 -SiO.sub.2 -K.sub.2 O which have good mechanical strength and abrasion resistance properties | Chemistry; Metallurgy | 6 | Expired |
| US5002749A | Process for the manufacture of zirconium oxide hydrate from granular crystallized zirconium oxide | Chemistry; Metallurgy | 6 | Expired |
| US5149510A | Reactive zirconium oxide and its preparation | Chemistry; Metallurgy | 5 | Expired |
| US9284228B2 | Communication device | Electricity | 4 | Active |
| US9126870B2 | Colored sintered zirconia | Emerging Cross-Sectional Technologies | 3 | Active |
| US5252310A | Reactive derivative of zirconium and its preparation | Chemistry; Metallurgy | 3 | Expired |
| US11033863B2 | Filters comprising oxygen-depleted SiC membranes | Chemistry; Metallurgy | 1 | Active |
| US10081575B2 | Sintered ceramic component and a process of forming the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US5631084A | Thermally-insulating components made of thermally-stabilized refractory ceramic fibers | Emerging Cross-Sectional Technologies | 0 | Expired |
| US10934218B2 | Porous ceramic products of titanium sub-oxides | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.