Assignee
FLUID HANDLING LLC
US51 patents
Top patents by PatentIndex Score
USD686699SJul 23, 2013
Balancing valve
FLUID HANDLING LLC21 citations87
US9366582B2Jun 14, 2016
Combination isolation valve and check valve with integral flow rate, pressure, and/or temperature measurement
FLUID HANDLING LLC10 citations79
USD706394SJun 3, 2014
Combined balancing scale and knob for a balancing valve
FLUID HANDLING LLC6 citations79
US9016140B2Apr 28, 2015
Valve having rotatable valve ball with calibrated orifice and coaxial upstream/downstream ports and angled taps to measure upstream/downstream pressures for flow measurement
FLUID HANDLING LLC11 citations76
US11022985B2Jun 1, 2021
Discrete valve flow rate converter
FLUID HANDLING LLC2 citations72
US10823176B2Nov 3, 2020
Variable speed pumping control system with active temperature and vibration monitoring and control means
FLUID HANDLING LLC3 citations72
US10317894B2Jun 11, 2019
No flow detection means for sensorless pumping control applications
FLUID HANDLING LLC3 citations72
US10119545B2Nov 6, 2018
3-D sensorless conversion method and apparatus for pump differential pressure and flow
FLUID HANDLING LLC2 citations72
US9938970B2Apr 10, 2018
Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring
FLUID HANDLING LLC3 citations72
US9897084B2Feb 20, 2018
Sensorless adaptive pump control with self-calibration apparatus for hydronic pumping system
FLUID HANDLING LLC5 citations72
US9611856B2Apr 4, 2017
Mixed theoretical and discrete sensorless converter for pump differential pressure and flow monitoring
FLUID HANDLING LLC5 citations72
US11686610B2Jun 27, 2023
Operational condition monitoring system
FLUID HANDLING LLC2 citations68
US10920769B2Feb 16, 2021
Pump cloud-based management and control technique customized hydronic components
FLUID HANDLING LLC3 citations66
US11898804B2Feb 13, 2024
Fluid routing methods for a spiral heat exchanger with lattice cross section made via additive manufacturing
FLUID HANDLING LLC0 citations60
US11193716B2Dec 7, 2021
Fluid routing methods for a spiral heat exchanger with lattice cross section made via additive manufacturing
FLUID HANDLING LLC0 citations60
US11209007B2Dec 28, 2021
Converting mechanical energy from vibration into electrical energy to power a circuit board for condition monitoring of rotating machinery
FLUID HANDLING LLC2 citations59
US11035368B2Jun 15, 2021
Pump control design toolbox technique for variable speed pumping applications
FLUID HANDLING LLC0 citations58
US11391491B2Jul 19, 2022
Low water cut-off remote monitoring and diagnosing system
FLUID HANDLING LLC0 citations56
US9170137B2Oct 27, 2015
Rotatable orifice plate for direct flow measurement
FLUID HANDLING LLC3 citations54
US11248598B2Feb 15, 2022
Optimal efficiency operation in parallel pumping system with machine learning
FLUID HANDLING LLC0 citations52
US10533570B2Jan 14, 2020
Opposed impeller wear ring undercut to offset generated axial thrust in multi-stage pump
FLUID HANDLING LLC1 citations51
US10048701B2Aug 14, 2018
Dynamic linear control methods and apparatus for variable speed pump control
FLUID HANDLING LLC1 citations51
US9846416B2Dec 19, 2017
System and flow adaptive sensorless pumping control apparatus for energy saving pumping applications
FLUID HANDLING LLC1 citations51
US10443880B2Oct 15, 2019
Combined isolation valve and check valve with integral flow rate pressure, and/or temperature measurement and field configurability
FLUID HANDLING LLC1 citations50
US11511372B2Nov 29, 2022
Technique to improve the performance of a pump with a trimmed impeller using additive manufacturing
FLUID HANDLING LLC0 citations49
US11060796B2Jul 13, 2021
3D spiral heat exchanger
FLUID HANDLING LLC0 citations49
US10670024B2Jun 2, 2020
Direct numeric affinity pumps sensorless converter
FLUID HANDLING LLC0 citations48
US11274767B2Mar 15, 2022
Flow rate scale field calibration for balancing valve
FLUID HANDLING LLC0 citations47
US10670010B2Jun 2, 2020
Direct numeric 3D sensorless converter for pump flow and pressure
FLUID HANDLING LLC0 citations47
US10662954B2May 26, 2020
Direct numeric affinity multistage pumps sensorless converter
FLUID HANDLING LLC0 citations47
US11391287B2Jul 19, 2022
Advanced real time graphic sensorless energy saving pump control system
FLUID HANDLING LLC0 citations45
US12313082B2May 27, 2025
Volute design for lower manufacturing cost and radial load reduction
FLUID HANDLING LLC0 citations44
US10132305B2Nov 20, 2018
Variable speed multi-pump application for providing energy saving by calculating and compensating for friction loss using speed reference
FLUID HANDLING LLC1 citations44
US12341336B2Jun 24, 2025
Reliability improvement for switch controlled motor operated devices
FLUID HANDLING LLC0 citations43
US11090721B2Aug 17, 2021
Method for modifying the dimensions of a cast iron pump part
FLUID HANDLING LLC0 citations43
US11009259B2May 18, 2021
Low water mechanical CSD-1 manual switch conversion to electro-mechanical switch
FLUID HANDLING LLC0 citations43
US10746189B2Aug 18, 2020
Center bushing to balance axial forces in multi-stage pumps
FLUID HANDLING LLC0 citations43
US10429063B2Oct 1, 2019
Smart algorithm to determine “steam boiler water condition”
FLUID HANDLING LLC0 citations43
US10072855B2Sep 11, 2018
Combination isolation valve and check valve with integral flow rate, pressure, and/or temperature measurement with wireless power
FLUID HANDLING LLC0 citations41
US10473507B2Nov 12, 2019
E-11 switch assembly
FLUID HANDLING LLC0 citations40
US10697462B2Jun 30, 2020
Multi-stage impeller produced via additive manufacturing
FLUID HANDLING LLC0 citations39
US10895881B2Jan 19, 2021
Adaptive water level controls for water empty or fill applications
FLUID HANDLING LLC0 citations37
US12435808B2Oct 7, 2025
Assembly having an assembly union (U) that orients and aligns multiple components, including a housing, body adapter and locking ring
FLUID HANDLING LLC0 citations35
US11731885B2Aug 22, 2023
Coalescing media for hydronic air and sediment separation device
FLUID HANDLING LLC0 citations35
US10527475B2Jan 7, 2020
Contoured insert for flow verification
FLUID HANDLING LLC0 citations32
US12078185B2Sep 3, 2024
Bearing-less turbine
FLUID HANDLING LLC0 citations30
US10520101B2Dec 31, 2019
Contoured check valve disc for low cracking pressure
FLUID HANDLING LLC0 citations30
US10378548B2Aug 13, 2019
Submersible pump motor housing for improving the serviceability of submersible pumps
FLUID HANDLING LLC0 citations29
US10240611B2Mar 26, 2019
Flow conditioning feature for suction diffuser
FLUID HANDLING LLC0 citations29
US10066672B2Sep 4, 2018
Tapered washer shaft jacking arrangement
FLUID HANDLING LLC0 citations26
Showing the top 50 of 51 patents by PatentIndex Score.