DW

David L. Wehrs

RO Rosemount: 14 patents #30 of 629Top 5%
EN Entegris: 2 patents #263 of 643Top 45%
FS Fisher-Rosemount Systems: 1 patents #265 of 460Top 60%
Overall (All Time): #275,514 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9534491 Detection of position of a plunger in a well John P. Miller 2017-01-03
9182256 Process variable transmitter with two-wire process control loop diagnostics Gregory J. LeCuyer, Jessica Lo, Steven J. McCoy, Brian L. Westfield 2015-11-10
8448525 Differential pressure based flow measurement John P. Miller, Andrew J. Klosinski 2013-05-28
8290721 Flow measurement diagnostics Evren Eryurek 2012-10-16
7996161 Process fluid pressure transmitter with pressure transient detection Andrew J. Klosinski, Gregory J. LeCuyer, Dale Henry Perry, Steve VanderSanden 2011-08-09
7680549 Diagnostics in industrial process control system Kadir Kavaklioglu, Donald R. Lattimer, Evren Eryurek 2010-03-16
7659828 Industrial field device with automatic indication of solids Robert J. Karschnia, Evren Eryurek 2010-02-09
7521944 System and method for detecting fluid in terminal block area of field device 2009-04-21
7458280 Wet gas indication using a process fluid differential pressure transmitter Russell Evans, Ghidewon Arefe 2008-12-02
7343817 Magnetic flow meter with unibody construction and conductive polymer electrodes Robert T. Chinnock 2008-03-18
7155983 Magnetic flow meter with unibody construction and conductive polymer electrodes Robert T. Chinnock 2007-01-02
6615149 Spectral diagnostics in a magnetic flow meter 2003-09-02
6611775 Electrode leakage diagnostics in a magnetic flow meter Thomas P. Coursolle 2003-08-26
6611770 Liquid conduction indication in a magnetic flowmeter William E. O'Donnell, Thomas P. Coursolle 2003-08-26
6594613 Adjustable bandwidth filter for process variable transmitter Kevin R. Ley, David C. Bohn 2003-07-15
5079957 Conversion circuit for an electromagnetic flow transmitter 1992-01-14
4598251 Frequency to current converter circuit 1986-07-01