Assignee
GRAEFF RODERICH WILHELM
DE·10 granted patents·242 citations·filing 1974–2012
Top patents by PatentIndex Score
10 records- 0191US4413426AMethod and apparatus for drying moist exhaust air from one or more bulk material drying hoppersGRAEFF RODERICH WILHELM·Filed 1981·Granted Nov 8, 1983·50 cites·28 claims
- 0285US4038054AAdsorption apparatusGRAEFF RODERICH WILHELM·Filed 1974·Granted Jul 26, 1977·43 cites·7 claims
- 0384US4509272AMethod and apparatus for drying moist exhaust air from one or more bulk material drying hoppersGRAEFF RODERICH WILHELM·Filed 1982·Granted Apr 9, 1985·37 cites·5 claims
- 0483US4870760AMethod and an apparatus for drying bulk material, preferably of plastic granulesGRAEFF RODERICH WILHELM·Filed 1988·Granted Oct 3, 1989·33 cites·12 claims
- 0571US3972129AApparaus for the adsorption treatment of a gaseous mediumGRAEFF RODERICH WILHELM·Filed 1974·Granted Aug 3, 1976·21 cites·12 claims
- 0663US8959794B2Process and apparatus to control the airflow in dehumidifying dryersGRAEFF RODERICH WILHELM·Filed 2012·Granted Feb 24, 2015·1 cites·20 claims
- 0763US4521977AMethod and an apparatus for extracting gases and vapors from a drying hopper filled with bulk materialGRAEFF RODERICH WILHELM·Filed 1983·Granted Jun 11, 1985·23 cites·11 claims
- 0858US4918837ADevice for generating a continuous stream of dried gasesGRAEFF RODERICH WILHELM·Filed 1985·Granted Apr 24, 1990·15 cites·6 claims
- 0952US4481721AMethod of and an apparatus for drying pulverulent materialsGRAEFF RODERICH WILHELM·Filed 1980·Granted Nov 13, 1984·11 cites·10 claims
- 1039US5094011AMethod and apparatus for conveying dried plastic granulatesGRAEFF RODERICH WILHELM·Filed 1990·Granted Mar 10, 1992·8 cites·19 claims
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