Inventor · disambiguated record
Wilfried Kreft
Also filed as: KREFT WILFRIED · RITZMANN HORST
8 granted patents·48 citations·filing 1977–1998
85Inventor score
Top patents by PatentIndex Score
8 records- 0159US4127406AProcess for the heat treatment of fine materialPOLYSIUS AG·Filed 1977·Granted Nov 28, 1978·9 cites·5 claims
- 0249US5264654AMethod and apparatus for processing contaminated soilsORENSTEIN & KOPPEL AG·Filed 1989·Granted Nov 23, 1993·15 cites·19 claims
- 0343US4492566AMethod and apparatus for heat treatment of fine-grained materialKRUPP POLYSIUS AG·Filed 1983·Granted Jan 8, 1985·8 cites·15 claims
- 0434US4579526AMethod and apparatus for the heat treatment of fine-grained materialKRUPP POLYSIUS AG·Filed 1984·Granted Apr 1, 1986·5 cites·10 claims
- 0531US6030448AMethod for producing cement clinkerKRUPP POLYSIUS AG·Filed 1998·Granted Feb 29, 2000·4 cites·10 claims
- 0630US4213790AProcess for the production of cement in a fluidized bedPOLYSIUS AG·Filed 1978·Granted Jul 22, 1980·2 cites·17 claims
- 0727US4457082AHeat exchangerKRUPP POLYSIUS AG·Filed 1982·Granted Jul 3, 1984·2 cites·7 claims
- 0823US5244383AMethod and apparatus for reducing the circulation of salts particularly in cement kilnsORENSTEIN & KOPPEL AG·Filed 1989·Granted Sep 14, 1993·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →