Inventor
GETHMANN DOUGLAS P
US20 patents
⚠️ This page may combine multiple inventors who share the name “GETHMANN DOUGLAS P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FISHER CONTROLS INT
18 patentsUS5941281AAug 24, 1999
Fluid pressure reduction device
FISHER CONTROLS INT65 citations95
US5769122AJun 23, 1998
Fluid pressure reduction device
FISHER CONTROLS INT93 citations95
US5180139AJan 19, 1993
Rotary ball fluid control valve with noise attenuator
FISHER CONTROLS INT77 citations95
US5400825AMar 28, 1995
Rotary noise attenuator
FISHER CONTROLS INT48 citations94
US5332004AJul 26, 1994
Rotary noise attenuator
FISHER CONTROLS INT56 citations94
US6733000B2May 11, 2004
Pivot actuated sleeve valve
FISHER CONTROLS INT23 citations92
US7219691B2May 22, 2007
Control valve positioner mounting system
FISHER CONTROLS INT27 citations91
US5193583AMar 16, 1993
Rotary noise attenuator
FISHER CONTROLS INT34 citations91
US5163463ANov 17, 1992
Mechanical flexure for motion amplification and transducer with same
FISHER CONTROLS INT20 citations80
US7472716B2Jan 6, 2009
Valve packing removal device
FISHER CONTROLS INT6 citations73
US6939074B2Sep 6, 2005
Stem connector assembly
FISHER CONTROLS INT11 citations73
US6929245B2Aug 16, 2005
Stem to sleeve connection for pivot actuated sleeve valve
FISHER CONTROLS INT9 citations73
US6874761B2Apr 5, 2005
Pivot actuated sleeve valve
FISHER CONTROLS INT9 citations73
US6416268B2Jul 9, 2002
Mechanical fastening apparatus
FISHER CONTROLS INT7 citations73
US6213150B1Apr 10, 2001
Fluid pressure reduction disks with taper nut retention device
FISHER CONTROLS INT2 citations62
US5265637ANov 30, 1993
Mechanical flexure for motion amplification and transducer with same
FISHER CONTROLS INT4 citations60
US7832327B2Nov 16, 2010
Ring sealed diaphragm
FISHER CONTROLS INT4 citations59
US7172172B2Feb 6, 2007
Valve packing removal device
FISHER CONTROLS INT1 citations52