MERCOID
Filed: January 25, 1922
Pressure, Vacuum, Thermostatic, and Temperature Circuit-Controlling Devices and Switches and Pressure-Controlling Switches…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 71158421
MERCOID
Filed: July 19, 1954
LIMITING, SIGNALLING AND SAFETY DEVICES-NAMELY, [ LIGHT ACTUATED FLAME DETECTORS AND ] MERCURY CONTACT DEVICES, TEMPERATURE…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 71670209
PRECISOR
Filed: March 29, 1956
PNEUMATIC POSITION SERVO MECHANISM
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72005468
FLOTECT
Filed: October 1, 1956
EXPLOSION PROOF, FLOW RESPONSIVE, ELECTRICAL SWITCHING APPARATUS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72016655
MAGNEHELIC
Filed: July 27, 1959
Pressure Gages
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72078440
LIN-E-AIRE
Filed: March 23, 1960
Motor Drive for Positioning the Stem of Motor Operated Valves Employed to Control the Flow of Fluids
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72093562
Image Trademark
Filed: January 24, 1963
Vacuum Operated Electric Switches, Pressure Operated Electric Switches, Float Operated Electric Switches, Mechanically Operated…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72161351
Image Trademark
Filed: January 24, 1963
Mercury Contact Devices, Temperature Devices, Timing Devices, Differential Pressure Devices, Vacuum Controlling and Indicating…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72161352
MERCOID CONTROL
Filed: May 16, 1966
MERCURY CONTACT DEVICES, TEMPERATURE DEVICES, [ TIMING DEVICES, ] DIFFERENTIAL PRESSURE DEVICES, PRESSURE ACTUATED MCHANICAL…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72245732
PHOTOHELIC
Filed: March 7, 1967
FLUID GAGES
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72266148
RATE-MASTER
Filed: January 29, 1968
FLOWMETERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72289666
DURABLOCK
Filed: March 20, 1969
INSTRUMENTS FOR MEASURING FLUID PRESSURE-NAMELY, MANOMETERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72322219
MINI-MASTER
Filed: September 26, 1969
FLOWMETERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72338966
DWYER
Filed: June 18, 1970
PRESSURE GAUGES, PRESSURE SWITCHES, COMBINATION PRESSURE SWITCHES AND GAUGES, AIR FILTER GAUGES, KITS FOR AIR FILTER GAUGE…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72362958
DWYER
Filed: August 31, 1970
PRESSURE GAUGES, PRESSURE SWITCHES, COMBINATION PRESSURE SWITCHES AND GAUGES, AIR FILTER GAUGES, KITS FOR AIR FILTER GAUGE…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72369415
SLACK TUBE
Filed: September 21, 1970
MANOMETERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72371155
FLEX-TUBE
Filed: October 7, 1970
MANOMETERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72372683
CAPSUHELIC
Filed: December 28, 1970
PRESSURE GAUGES
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72379549
DUOTECT
Filed: November 8, 1972
EXPLOSION-PROOF PRESSURE SWITCHES
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 72440639
UNIVERSAL
Filed: June 5, 1978
INDUSTRIAL LIQUID FLOW MONITORS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 73173024
SPIRAHELIC
Filed: October 25, 1978
PRESSURE GAUGES
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 73190600
ISO VERTER
Filed: April 2, 1979
Process Signal Converter and Isolator
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 73209946
LOVE
Filed: April 27, 1979
Thermoelectric Transducers and Temperature Actuated Control Devices-Namely, Controllers, Indicators, Probes, Transformers…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 73213263
UFM
Filed: December 3, 1984
FLUID FLOW INDICATORS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 73511563
MAGNEHELIC
Filed: August 5, 1991
pressure gauges and indicating transmitters; namely, differential pressure gauges equipped for visual monitoring of differential…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 74191899
W.E. ANDERSON
Filed: May 15, 1992
electrostatic dissipating shoe testers; pressure, flow and level switches, visual flow indicators for gases and liquids,…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 74275696
SAFE-T-OHM
Filed: April 25, 1994
electrical instruments for testing grounding, continuity, and resistance
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 74519425
FLOWSTREAM
Filed: August 24, 1995
fluid flowmeters
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 74719987
PROXIMITY
Filed: September 30, 1996
position indicating switches, position indicating transmitters, level sensing switches for powders and bulk solids, level…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 75173822
QUICK-VIEW
Filed: December 4, 1996
valve position indicators, position indicating switches, position indicating transmitters, and parts therefor
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 75207733
CAPSU-PHOTOHELIC
Filed: March 6, 1997
combination pressure switches and gages
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 75253145
OPTITROL
Filed: March 21, 1997
optical level switches
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 75262340
Image Trademark
Filed: August 18, 1999
TEMPERATURE ACTUATED CONTROL DEVICES, namely, CONTROLLERS, INDICATORS, [ PROBES, TRANSFORMERS, ZERO CROSSOVER FIRING UNITS…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 75780660
MINIHELIC
Filed: February 26, 2001
PRESSURE GAUGES
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 76216572
DIGIHELIC
Filed: March 9, 2001
PRESSURE GAGES, DIFFERENTIAL PRESSURE GAGES, PRESSURE SWITCHES, DIFFERENTIAL PRESSURE SWITCHES, COMBINATION PRESSURE SWITCHES…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 76222274
COOLPOINT
Filed: April 23, 2002
FLUID FLOW METERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 76399005
MINI-PHOTOHELIC
Filed: July 21, 2003
PRESSURE GAGES; PRESSURE SWITCHES; AND PRESSURE TRANSMITTERS
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 76535045
MAGNESENSE
Filed: June 14, 2004
PRESSURE TRANSMITTERS FOR TRANSMITTING A MEASURED PRESSURE OR PRESSURE DIFFERENTIAL; INDICATING PRESSURE TRANSMITTERS; INDICATING…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 76596942
ONE-TOUCH
Filed: October 31, 2006
Pressure transmitters; differential pressure transmitters; pressure and differential pressure sensors for converting a measured…
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 77033254
Image Trademark
Filed: November 8, 2006
Pressure gages and differential pressure gages
Owned by: DWYER INSTRUMENTS, LLC
Serial Number: 77039625
