Bernd Kempf
24Patents
8h-index
57Co-inventors
78Inventor score
Filing activity: Nov 21, 1986 → Dec 29, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6649559B2 | Supported metal membrane, a process for its preparation and use | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6247296A | Drive arrangement for the crop conveying and/or processing mechanism of a harvesting machine | Human Necessities | 30 | Expired |
| US5865444A | Body leveling suspension including a pivoting arrangement | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5240172A | Solder alloy for dental and jewelry parts | Chemistry; Metallurgy | 19 | Expired |
| US7044257B2 | Drive system of a utility vehicle | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5298218A | Palladium based alloy for dental applications | Chemistry; Metallurgy | 13 | Expired |
| US4738651A | Steplessly adjustable belt-type transmission | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6052978A | Ensilage harvester variable speed feed roll drive | Human Necessities | 9 | Expired |
| US7213389B2 | Infinitely variable transmission for a combine header unit | Human Necessities | 7 | Expired |
| US6262307A | Shaped, activated metal, fixed-bed catalyst | Chemistry; Metallurgy | 7 | Expired |
| US7297178B2 | Method and device for producing spherical metal particles | Performing Operations; Transporting | 7 | Expired |
| US5221207A | Yellow dental alloy with a high gold content | Chemistry; Metallurgy | 6 | Expired |
| US7842274B2 | Process for manufacture of silver-based particles and electrical contact materials | Electricity | 5 | Active |
| US7566437B2 | Process for manufacture of silver-based composite powders for electrical contact materials and composite powders so produced | Performing Operations; Transporting | 4 | Active |
| US4844223A | Arrangement for braking a gearbox component | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7200980B2 | Drive system of a self-propelled working machine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6941737B2 | Safety arrangement of a harvesting machine | Human Necessities | 3 | Expired |
| US6810649B2 | Drive system for a crop processing device and for a crop transport device of a harvesting machine | Human Necessities | 3 | Expired |
| US7754280B2 | Silver/carbon-based material and method for producing the same for contact material | Emerging Cross-Sectional Technologies | 2 | Active |
| US5833462A | Precision attachments for dental technology capable of being cast on | Human Necessities | 1 | Expired |
| US5250110A | Dustfree investment material for accurately fitting cast pieces and method of producing these investment materials | Performing Operations; Transporting | 1 | Expired |
| US8749330B2 | Electric contact element and method for producing an electric contact element | Emerging Cross-Sectional Technologies | 1 | Active |
| US5695714A | Gold-palladium alloys for dental materials | Human Necessities | 1 | Expired |
| US9028586B2 | Oxidation method | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.