Assignee
HATCH LTD
CA54 patents
Top patents by PatentIndex Score
US10995014B1May 4, 2021
Process for producing crystallized metal sulfates
HATCH LTD39 citations88
US7665362B2Feb 23, 2010
Systems, methods and apparatus for non-disruptive and non-destructive inspection of metallurgical furnaces and similar vessels
HATCH LTD10 citations83
US7283866B2Oct 16, 2007
Needle having multiple electrodes
HATCH LTD14 citations81
US6814012B2Nov 9, 2004
Furnace binding and adjustment systems
HATCH LTD13 citations79
US9870593B2Jan 16, 2018
System, method and controller for managing and controlling a micro-grid
HATCH LTD11 citations74
US7257146B2Aug 14, 2007
System and method for controlling power across multiple electrodes in a furnace
HATCH LTD5 citations71
US7212561B2May 1, 2007
System and method for controlling electrical power across multiple furnaces using variable reactors
HATCH LTD7 citations71
US9850138B2Dec 26, 2017
Ponds for cooling and/or salt recovery
HATCH LTD2 citations70
US6860983B2Mar 1, 2005
Recovery and re-use of anode oxygen from electrolytic cells
HATCH LTD14 citations70
US7075966B2Jul 11, 2006
Electrode column
HATCH LTD7 citations67
US9347708B2May 24, 2016
Furnace with refractory bricks that define cooling channels for gaseous media
HATCH LTD3 citations66
US6945775B2Sep 20, 2005
Method and apparatus for heating a slurry to a predetermined temperature
HATCH LTD11 citations65
US11146067B2Oct 12, 2021
Line control circuit configuration
HATCH LTD2 citations64
US9845992B2Dec 19, 2017
Feed flow conditioner for particulate feed materials
HATCH LTD6 citations64
US6875251B2Apr 5, 2005
Continuous steelmaking process
HATCH LTD6 citations64
US10408767B1Sep 10, 2019
System and method for detecting imperfections in a reflective surface
HATCH LTD4 citations63
US10174403B2Jan 8, 2019
Methods and apparatus for metal recovery from slag
HATCH LTD3 citations63
US9791416B2Oct 17, 2017
Furnace structural integrity monitoring systems and methods
HATCH LTD6 citations62
US6953337B2Oct 11, 2005
Transfer of hot feed materials from a preprocessing plant to an electric smelting or melting furnace
HATCH LTD3 citations60
US7295593B2Nov 13, 2007
System and method of minimizing loss of electrical conduction during input of feed material to a furnace
HATCH LTD3 citations59
US7212562B2May 1, 2007
System and method for controlling total electrical power across multiple furnaces using electrode positioning
HATCH LTD9 citations59
US12441621B2Oct 14, 2025
Treatment process for crystallizing a metal sulfate
HATCH LTD1 citations58
US12522510B2Jan 13, 2026
Sodium sulfate by-product processing in lithium and battery chemical production
HATCH LTD0 citations57
US12054401B2Aug 6, 2024
Process and method for producing crystallized metal sulfates
HATCH LTD1 citations56
US10259084B2Apr 16, 2019
Furnace cooling system with thermally conductive joints between cooling elements
HATCH LTD1 citations55
US7783436B2Aug 24, 2010
System and method for the acoustic monitoring of tapblocks and similar elements
HATCH LTD2 citations55
US6692719B1Feb 17, 2004
Process for regeneration of acid halide solutions
HATCH LTD2 citations55
US7976770B1Jul 12, 2011
Diagnostic system and method for metallurgical reactor cooling elements
HATCH LTD5 citations54
US6724802B1Apr 20, 2004
Cooling and support systems for furnace roofs
HATCH LTD4 citations53
US7134397B2Nov 14, 2006
System for applying vertical compressive force to furnace walls
HATCH LTD4 citations52
US11029092B2Jun 8, 2021
Magnetic energy harvesting device and method for electric metallurgical furnaces and similar environments
HATCH LTD0 citations51
US11873539B2Jan 16, 2024
Ferronickel alloy direct refining processes and processes for producing nickle sulfate or other nickel products
HATCH LTD0 citations49
US10527352B2Jan 7, 2020
Wear resistant composite material, its application in cooling elements for a metallurgical furnace, and method of manufacturing same
HATCH LTD1 citations49
US10315176B2Jun 11, 2019
Plug flow reactor with internal recirculation fluidized bed
HATCH LTD1 citations49
US12281027B2Apr 22, 2025
Processes for crystallizing metal sulfates and methods for producing crystallized metal sulfates
HATCH LTD0 citations48
US9863707B2Jan 9, 2018
Furnace with refractory bricks that define cooling channels for gaseous media
HATCH LTD1 citations45
US10889906B2Jan 12, 2021
Low-profile aluminum cell potshell and method for increasing the production capacity of an aluminum cell potline
HATCH LTD0 citations44
US11122654B2Sep 14, 2021
Flicker control for electric arc furnace
HATCH LTD0 citations43
US7449142B2Nov 11, 2008
Plant for use in continuous steelmaking process
HATCH LTD0 citations43
US12442065B2Oct 14, 2025
System and method for coating of continuous sheets of metal
HATCH LTD0 citations42
US11384986B2Jul 12, 2022
Open arc condition mitigation based on measurement
HATCH LTD0 citations42
US12145636B2Nov 19, 2024
Device, system and method for detecting leakage current for traction power system
HATCH LTD0 citations41
US10196707B2Feb 5, 2019
Process and reactor for arsenic fixation
HATCH LTD0 citations38
US10167423B2Jan 1, 2019
Granulated slag products and processes for their production
HATCH LTD0 citations36
US9827547B2Nov 28, 2017
Multi-compartment reactor and method for controlling retention time in a multi-compartment reactor
HATCH LTD0 citations34
US10100930B2Oct 16, 2018
Sleeve seal for electric furnace electrodes
HATCH LTD0 citations32
US9377254B2Jun 28, 2016
Cooling of chill molds using baffles
HATCH LTD0 citations32
US11021942B2Jun 1, 2021
Methods of managing solvent inventory in a gravity drainage extraction chamber
HATCH LTD0 citations31
US10705196B2Jul 7, 2020
Method and apparatus for measuring the length of an electrode in an electric arc furnace
HATCH LTD0 citations30
US9657939B2May 23, 2017
Fluidic control burner for pulverous feed
HATCH LTD0 citations29
Showing the top 50 of 54 patents by PatentIndex Score.