Werner Kiefer
33Patents
14h-index
45Co-inventors
81Inventor score
Filing activity: Sep 13, 1974 → Feb 12, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4203264A | Fireproof building element | Fixed Constructions | 84 | Expired |
| US5096814A | Macroporous and microporous inorganic carrier for immobilization of cells | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6630420B1 | Glass with high proportion of zirconium-oxide and its uses | Chemistry; Metallurgy | 62 | Expired |
| US6627569B1 | Glass with high proportion of zirconium-oxide and its uses | Chemistry; Metallurgy | 56 | Expired |
| US5763343A | Fire retardant safety glass | Chemistry; Metallurgy | 51 | Expired |
| US4870034A | Borosilicate glass | Chemistry; Metallurgy | 51 | Expired |
| US4588540A | Method of manufacturing porous sintered inorganic bodies with large open pore volume | Chemistry; Metallurgy | 29 | Expired |
| US8424342B2 | Melting and refining in tanks with cooled walls | Emerging Cross-Sectional Technologies | 27 | Active |
| US4172921A | Fireproof glass | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4516999A | Process for the thermal tempering of glass | Chemistry; Metallurgy | 25 | Expired |
| US3984252A | Fireproof glass windowpanes | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5633090A | Lead-and cadmium-free glass composition for glazing, enameling and decorating glass | Chemistry; Metallurgy | 22 | Expired |
| US5045509A | UV-transparent glass | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5656558A | Fire retardant safety glass | Chemistry; Metallurgy | 17 | Expired |
| US6698244B1 | Method for refining molten glass | Chemistry; Metallurgy | 14 | Expired |
| US4404291A | Low-density, open-pore molded inorganic body with a homogeneous pore distribution | Chemistry; Metallurgy | 14 | Expired |
| US4113904A | Fire resistant windows | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6588234B1 | Device and method of plaining glasses or glass-ceramics | Chemistry; Metallurgy | 12 | Expired |
| US4987068A | Porous inorganic support spheres which can be cleaned of surface biomass under fluidized bed conditions | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4904291A | Process for the manufacture of open porous sintered bodies being prepronderantly composed of glass ceramics | Chemistry; Metallurgy | 10 | Expired |
| US6810689B2 | Process for the melting, refining and homogenizing of glass melts | Chemistry; Metallurgy | 9 | Expired |
| US5127931A | Process for ion exchange on glass or glass ceramic | Chemistry; Metallurgy | 8 | Expired |
| US6577667B1 | Skull pot for melting or refining inorganic substances | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6817212B1 | Skull pot for melting or refining glass or glass ceramics | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4515897A | Crystallizing glass solders and stripping films with such glass solder imprinted thereon | Chemistry; Metallurgy | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.