Helmut Ringel
16Patents
6h-index
8Co-inventors
59Inventor score
Filing activity: Sep 15, 1975 → Feb 16, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6268076A | Current collector for a SOFC fuel-cell pile | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4915039A | Process for heat-treating refuse and equipment to carry out the process | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4533365A | Process for the separation and recycling of NO.sub.x gas constituents through adsorption and desorption on a molecular sieve | Performing Operations; Transporting | 14 | Expired |
| US4193953A | Hydrosol droplet casting process for production of nuclear fuel and breeder material granules | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4430030A | Operating process for the formation of a steady particle stream of particles conveyed within a flow conduit by a flow medium and arrangement for effectuation of the process | Performing Operations; Transporting | 6 | Expired |
| US4224258A | Method and apparatus for producing spherical particles of uniform size of nuclear fuels or breeder materials | Performing Operations; Transporting | 6 | Expired |
| US4816041A | Process and installation for the adsorptive separation of krypton from a krypton nitrogen gas mixture | Chemistry; Metallurgy | 5 | Expired |
| US4562000A | Process for the separation of krypton from a radioactive waste gas mixture and arrangement for implementing the process | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5932366A | Solid electrolyte high temperature fuel cell | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4075104A | Device for separating in a continuous process particles from a first liquid and introducing the separated particles into a second liquid | Performing Operations; Transporting | 2 | Expired |
| US8071252B2 | Interconnector for high-temperature fuel cells | Emerging Cross-Sectional Technologies | 1 | Active |
| US7026067B2 | Fuel cell stack with internal gas connections | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8153327B2 | Interconnector for high temperature fuel cells | Emerging Cross-Sectional Technologies | 1 | Active |
| US4279866A | Method of producing weakly acidic cation exchange resin particles charged with uranyl ions | Chemistry; Metallurgy | 1 | Expired |
| US4654056A | Process for the separation of krypton from a radioactive waste gas mixture and arrangement for implementing the process | Emerging Cross-Sectional Technologies | 0 | Expired |
| US4514296A | Apparatus for producing ion exchange particles charged with uranyl ions | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.