Assignee
DWYER INSTR
US66 patents
Top patents by PatentIndex Score
US6789434B2Sep 14, 2004
Fluid flowmeter having a hall effect sensor with an internal magnet
DWYER INSTR28 citations92
US6089098AJul 18, 2000
Differential pressure switch having an isolated hall effect sensor
DWYER INSTR60 citations92
US4860583AAug 29, 1989
Air velocity transmitter device
DWYER INSTR30 citations92
USD287456SDec 30, 1986
Hexagonal installation key for a flow meter
DWYER INSTR31 citations92
US4559834ADec 24, 1985
Multipurpose flowmeter arrangement
DWYER INSTR30 citations92
US5183983AFeb 2, 1993
Flow switch assembly for fluid flow monitoring
DWYER INSTR78 citations91
US4841782AJun 27, 1989
Target fluid flow indicator gauge
DWYER INSTR27 citations91
US4347744ASep 7, 1982
Diaphragm type differential pressure gauge with overpressure relief protection
DWYER INSTR45 citations91
US7073385B2Jul 11, 2006
Pressure sensor with a radially tensioned metal diaphragm
DWYER INSTR17 citations89
US6981421B2Jan 3, 2006
Pressure gage and switch
DWYER INSTR32 citations89
US4890497AJan 2, 1990
Differential pressure gauge transmitter
DWYER INSTR24 citations87
US6905242B2Jun 14, 2005
Sensor temperature control in a thermal anemometer
DWYER INSTR36 citations86
US4827095AMay 2, 1989
Differential pressure switch assembly with high static pressure use characteristics
DWYER INSTR35 citations86
US4385525AMay 31, 1983
Strain gauge pressure transducer
DWYER INSTR32 citations86
US4725700AFeb 16, 1988
Airflow switch for air ducts
DWYER INSTR43 citations85
US9395386B2Jul 19, 2016
Electronic tilt compensation for diaphragm based pressure sensors
DWYER INSTR17 citations83
USD629708SDec 28, 2010
Gage
DWYER INSTR8 citations83
US4537068AAug 27, 1985
Thermal anemometer
DWYER INSTR51 citations83
US7281490B2Oct 16, 2007
Gauge having a magnetically driven pointer rotation device
DWYER INSTR14 citations82
US7249517B2Jul 31, 2007
Pressure transmitter with power cycled hall effect sensor
DWYER INSTR18 citations82
USD514007SJan 31, 2006
Pressure gauge
DWYER INSTR13 citations82
US10001151B2Jun 19, 2018
Air flow hood
DWYER INSTR9 citations80
US5373746ADec 20, 1994
Flowmeter with snap fit mount end caps
DWYER INSTR30 citations80
US5061832AOct 29, 1991
Field settable differential pressure switch assembly for low fluid pressure applications
DWYER INSTR24 citations80
US4011759AMar 15, 1977
Differential pressure gauge
DWYER INSTR20 citations80
US7600427B2Oct 13, 2009
Gage enclosure with cover removal mechanism
DWYER INSTR13 citations79
US4374475AFeb 22, 1983
Differential pressure gauge
DWYER INSTR19 citations79
US4154101AMay 15, 1979
Air velocity gauge
DWYER INSTR28 citations77
US6539814B1Apr 1, 2003
Flowmeter with threadless body and float stopper
DWYER INSTR14 citations76
US4030365AJun 21, 1977
Differential pressure gauge
DWYER INSTR31 citations76
USD293655SJan 12, 1988
Flowmeter
DWYER INSTR9 citations73
USD287703SJan 13, 1987
Mounting clip for flowmeters
DWYER INSTR7 citations73
US5357067AOct 18, 1994
Cam arrangement for use in rotary position indicators
DWYER INSTR11 citations72
US5352858AOct 4, 1994
Hermetically sealed snap switch assembly with pre-use backfilling option
DWYER INSTR15 citations72
US4938076AJul 3, 1990
Target fluid flow indicator gauge
DWYER INSTR19 citations72
USD560530SJan 29, 2008
Pressure transmitter
DWYER INSTR6 citations71
US9583967B2Feb 28, 2017
Ruggedized pressure transducer with integrated wireless antenna and rechargeable battery system
DWYER INSTR2 citations70
US6807865B2Oct 26, 2004
Pressure sensor with a radially tensioned metal diaphragm
DWYER INSTR9 citations70
USD488735SApr 20, 2004
Combination pressure switch and gage
DWYER INSTR8 citations70
USD316982SMay 21, 1991
Pressure gauge housing
DWYER INSTR6 citations70
US4838090AJun 13, 1989
Multicoil bourdon tube type pressure gauge
DWYER INSTR16 citations70
USD301018SMay 9, 1989
Gas pressure measuring and data transmitting device
DWYER INSTR7 citations70
US4718279AJan 12, 1988
Dual bourdon tube type sensing pressure transducer
DWYER INSTR12 citations70
USD854678SJul 23, 2019
HVAC airflow hood
DWYER INSTR2 citations69
US10671098B2Jun 2, 2020
System, method, and apparatus for balancing an HVAC system
DWYER INSTR3 citations67
US4631374ADec 23, 1986
Diaphragm operated switch type bin level sensor
DWYER INSTR9 citations66
USD942292SFeb 1, 2022
Differential pressure transmitter
DWYER INSTR3 citations63
US10359382B2Jul 23, 2019
System method and apparatus for humidity sensor temperature compensation
DWYER INSTR2 citations63
US6510741B2Jan 28, 2003
Manometer having dual pressure sensors
DWYER INSTR11 citations63
USD294230SFeb 16, 1988
Flowmeter
DWYER INSTR2 citations62
Showing the top 50 of 66 patents by PatentIndex Score.