Wehrs; David L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wehrs; David L..The latest application filed is for "differential pressure based flow measurement".

Company Profile

0.17.11

Wehrs; David L. - Eden Prairie MN
Wehrs; David L. - Woodbury MN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Process variable transmitter with two-wire process control loop diagnostics Grant 9,182,256 - Wehrs , et al. November 10, 2	2015-11-10
Differential pressure based flow measurement Grant 8,448,525 - Wehrs , et al. May 28, 2	2013-05-28
Flow measurement diagnostics Grant 8,290,721 - Wehrs , et al. October 16, 2	2012-10-16
Differential Pressure Based Flow Measurement App 20120222494 - Wehrs; David L. ; et al.	2012-09-06
Process fluid pressure transmitter with pressure transient detection Grant 7,996,161 - Klosinski , et al. August 9, 2	2011-08-09
Process Variable Transmitter With Two-wire Process Control Loop Diagnostics App 20110010120 - Wehrs; David L. ; et al.	2011-01-13
Field device with measurement accuracy reporting App 20100274528 - Lecuyer; Gregory Jacques ; et al.	2010-10-28
Diagnostics in industrial process control system Grant 7,680,549 - Kavaklioglu , et al. March 16, 2	2010-03-16
Industrial field device with automatic indication of solids Grant 7,659,828 - Wehrs , et al. February 9, 2	2010-02-09
Process Fluid Pressure Transmitter With Pressure Transient Detection App 20090139346 - Klosinski; Andrew J. ; et al.	2009-06-04
System and method for detecting fluid in terminal block area of field device Grant 7,521,944 - Wehrs April 21, 2	2009-04-21
Wet gas indication using a process fluid differential pressure transmitter Grant 7,458,280 - Wehrs , et al. December 2, 2	2008-12-02
System and method for detecting fluid in terminal block area of field device App 20080156090 - Wehrs; David L.	2008-07-03
Magnetic flow meter with unibody construction and conductive polymer electrodes Grant 7,343,817 - Wehrs , et al. March 18, 2	2008-03-18
Magnetic flow meter with unibody construction and conductive polymer electrodes App 20070234821 - Wehrs; David L. ; et al.	2007-10-11
Wet gas indication using a process fluid differential pressure transmitter App 20070163362 - Wehrs; David L. ; et al.	2007-07-19
Magnetic flow meter with unibody construction and conductive polymer electrodes App 20070062304 - Wehrs; David L. ; et al.	2007-03-22
Diagnostics in industrial process control system App 20070010900 - Kavaklioglu; Kadir ; et al.	2007-01-11
Magnetic flow meter with unibody construction and conductive polymer electrodes Grant 7,155,983 - Wehrs , et al. January 2, 2	2007-01-02
Flow measurement diagnostics App 20060277000 - Wehrs; David L.	2006-12-07
Magnetic flow meter with unibody construction and conductive polymer electrodes App 20060174715 - Wehrs; David L. ; et al.	2006-08-10
Spectral diagnostics in a magnetic flow meter Grant 6,615,149 - Wehrs September 2, 2	2003-09-02
Liquid conduction indication in a magnetic flowmeter Grant 6,611,770 - O'Donnell , et al. August 26, 2	2003-08-26
Electrode leakage diagnostics in a magnetic flow meter Grant 6,611,775 - Coursolle , et al. August 26, 2	2003-08-26
Adjustable bandwidth filter for process variable transmitter Grant 6,594,613 - Ley , et al. July 15, 2	2003-07-15
Frequency to current converter circuit Grant 4,598,251 - Wehrs July 1, 1	1986-07-01

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