Assignee

PFEIFFER ROBERT W

2 granted patents·51 citations·filing 1984–1991

Technology mixB01J2 F16K2 Y10T2

Top patents by PatentIndex Score

2 records

0179US4664139AValve especially for controlling particulate solids flowPFEIFFER ROBERT W·Filed 1984·Granted May 12, 1987·34 cites·20 claims
0253US5205537AValve with enhanced rangeability and logarithmic flow characteristicPFEIFFER ROBERT W·Filed 1991·Granted Apr 27, 1993·17 cites·32 claims

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