Assignee
PENBERTHY INC
US6 patents
Top patents by PatentIndex Score
US5461321AOct 24, 1995
Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle
PENBERTHY INC91 citations92
US5554937ASep 10, 1996
Apparatus and method for sensing material level by capacitance measurement
PENBERTHY INC31 citations89
US5481197AJan 2, 1996
High pressure, leak resistant explosionproof capacitance probe
PENBERTHY INC40 citations88
US5895058AApr 20, 1999
Laminated gasket
PENBERTHY INC7 citations73
US5465041ANov 7, 1995
Bipolar tracking current source/sink with ground clamp
PENBERTHY INC8 citations65
US6390016B1May 21, 2002
Sight flow indicator
PENBERTHY INC4 citations62