PAUL WURTH S.A.

COKE OVEN ROOF REPAIR OR REPLACEMENT

#2 | 2024-06-13 ✅ Patent 12,584,182 granted on 2026-03-24

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METHOD OF OPERATING AN ELECTRIC ARC FURNACE AND STEEL MILL

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Method for providing raw material for an industrial process

#4 | 2023-11-30 ✅ Patent 12,578,144 granted on 2026-03-17

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SUPPORT ASSEMBLY IN A HEAT STORAGE DEVICE

#5 | 2023-11-09 ✅ Patent 12,535,782 granted on 2026-01-27

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Physics

COMPUTER SYSTEM AND METHOD PROVIDING OPERATING INSTRUCTIONS FOR THERMAL CONTROL OF A BLAST FURNACE

#6 | 2023-07-20 ✅ Patent 12,492,866 granted on 2025-12-09

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GRATE BAR FOR A PELLETIZING OR SINTERING MACHINE

#7 | 2023-03-16 ✅ Patent 12,351,883 granted on 2025-07-08

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COOLING PLATE FOR A METALLURGICAL FURNACE

#8 | 2022-11-10 ✅ Patent 12,071,675 granted on 2024-08-27

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Shaft furnace condition monitoring

#9 | 2022-09-01 ✅ Patent 12,475,550 granted on 2025-11-18

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Physics

TRAVELLING GRATE CONDITION MONITORING

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Method for maintenance of a cooling assembly for a metallurgical furnace

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Method for operating a metallurgical furnace

#12 | 2022-03-10 ✅ Patent 12,235,047 granted on 2025-02-25

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Method for protecting an inner wall of a shaft furnace

#13 | 2022-02-17 ✅ Patent 11,549,754 granted on 2023-01-10

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Method for fitting or retrofitting a sinter cooler

#14 | 2022-01-27 ✅ Patent 12,050,058 granted on 2024-07-30

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Induration machine

#15 | 2021-12-02 ✅ Patent 11,535,904 granted on 2022-12-27

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Cooling box for a shaft furnace

#16 | 2020-12-17 ✅ Patent 11,498,081 granted on 2022-11-15

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Drying hopper as well as grinding and drying plant comprising such

#17 | 2020-12-10 ✅ Patent 11,021,764 granted on 2021-06-01

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Extraction device for a tuyere part

#18 | 2020-12-10 ✅ Patent 11,117,746 granted on 2021-09-14

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Wear resistant transfer or distribution chutes

#19 | 2020-10-08 ✅ Patent 11,542,565 granted on 2023-01-03

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Charging system, in particular for a shaft smelt reduction furnace

#20 | 2020-08-27 ✅ Patent 11,377,701 granted on 2022-07-05

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Shaft furnace condition monitoring

#21 | 2020-06-11 ✅ Patent 11,268,764 granted on 2022-03-08

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Device for mounting and/or dismantling staves in a shaft furnace

#22 | 2020-04-02 ✅ Patent 11,549,159 granted on 2023-01-10

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Method of operating a sinter plant

#23 | 2020-01-23 ✅ Patent 11,225,694 granted on 2022-01-18

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Cooling panel for metallurgical furnace

#24 | 2020-01-23 ✅ Patent 11,505,840 granted on 2022-11-22

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Cooling plate for metallurgical furnace

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Method of charging a coke oven

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Sealing valve arrangement for a shaft furnace charging installation

#27 | 2019-07-18 ✅ Patent 10,823,507 granted on 2020-11-03

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Material hopper, in particular for a blast furnace

#28 | 2019-03-07

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STEAM CONDENSATION SYSTEM FOR A GRANULATION INSTALLATION

#29 | 2019-01-03 ✅ Patent 10,449,548 granted on 2019-10-22

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Grinding and drying plant

#30 | 2018-12-27 ✅ Patent 11,142,803 granted on 2021-10-12

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Blast furnace stockhouse arrangement

#31 | 2018-09-20 ✅ Patent 10,502,491 granted on 2019-12-10

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Sealing valve arrangement for a shaft furnace charging installation

#32 | 2018-09-06 ✅ Patent 10,633,199 granted on 2020-04-28

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Enhanced pressurising of bulk material in lock hoppers

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Bellow compensator

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Gate valve for a chemical plant

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Optical monitoring system for observing internal conditions in the tuyere zone of a blast furnace

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Device for cooling a shaft furnace distribution chute support journals

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Pressurising of bulk material in lock hoppers

#38 | 2017-08-10 ✅ Patent 9,963,753 granted on 2018-05-08

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Blast furnace cooling plate with integrated wear detection system

#39 | 2017-07-13 ✅ Patent 10,113,799 granted on 2018-10-30

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Gearbox assembly for a charging installation of a metallurgical reactor

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Heat protection assembly for a charging installation of a metallurgical reactor

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Device for immobilizing the chute on the ends of journals in an apparatus for loading a shaft furnace

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Charging installation of a metallurgical reactor

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Stave cooler for a metallurgical furnace and method for protecting a stave cooler

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STEAM CONDENSATION TOWER FOR A GRANULATION INSTALLATION

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Shaft furnace charging device equipped with a cooling system and annular swivel joint therefore

#46 | 2015-10-29 ✅ Patent 9,393,616 granted on 2016-07-19

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Spreading device for bulk material on a circular surface and method for operating the same

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Rotary charging device for shaft furnace

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Installation for distributing pulverulent substance by pneumatic transportation, comprising a device for depressurizing a pressurized reservoir in which said substance is stored

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Rotary charging device for shaft furnace

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System of leaktight connection between a tuyere and a hot blast inlet nozzle for a shaft furnace, and steel-making blast furnace comprising such a system

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Dust emission reduction during metal casting

#52 | 2014-09-11 ✅ Patent 8,992,823 granted on 2015-03-31

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Method of operating regenerative heaters in blast furnace plant

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Blast furnace installation

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Ramming mass for the refractory lining of a metallurgical vessel, method for the placement thereof and metallurgical vessel, in particular blast furnace, comprising a lining using said ramming mass

#55 | 2014-06-19

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CHARGING DEVICE FOR SHAFT FURNACE WITH CONTROLLER FOR CLEAN GAS FED TO ITS MAIN CASING

#56 | 2014-05-15 ✅ Patent 9,073,693 granted on 2015-07-07

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Distribution chute for a charging device

#57 | 2014-04-24 ✅ Patent 9,217,606 granted on 2015-12-22

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Door and valve assembly for a charging installation of a shaft furnace

#58 | 2013-11-28

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STAVE COOLER FOR A METALLURGICAL FURNACE

#59 | 2013-11-07 ✅ Patent 9,371,571 granted on 2016-06-21

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Granulation of metallurgical slag

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Ceramic bottom lining of a blast furnace hearth

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Steam condensation tower for a granulation installation

#62 | 2013-08-15 ✅ Patent 9,200,346 granted on 2015-12-01

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Dry granulation of metallurgical slag

#63 | 2013-06-20

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METHOD AND DEVICE FOR MANUFACTURING VITREOUS SLAG

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Hearth for a metallurgical furnace having an improved wall lining

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Tuyere stock arrangement of a blast furnace

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Device for distributing bulk material with a distribution spout supported by a cardan suspension

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Shaft furnace charging device equipped with a cooling system and annular swivel joint therefore

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Device for regulating the temperature of a gas in a hot gas main

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Sealing valve arrangement for a shaft furnace charging installation

#70 | 2012-03-22

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DEVICE FOR DISTRIBUTING CHARGE MATERIAL IN A SHAFT FURNANCE

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Device for distributing charge material into a shaft furnace

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Method for operating a regenerative heater

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Cooling plate for a metallurgical furnace

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Arrangement for burning blast furnace off-gas from a bleeder valve and corresponding bleeder valve

#75 | 2012-02-23

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SHAFT FURNACE CHARGING INSTALLATION HAVING A DRIVE MECHANISM FOR A DISTRIBUTION CHUTE

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Method for feeding a burden to a blast furnace

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Method for feeding a burden to a blast furnace

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METHOD AND INSTALLATION FOR PRODUCING DIRECT REDUCED IRON

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Method for feeding hot gas to a shaft furnace

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Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace

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Method and system for adjusting the flow rate of charge material in a charging process of a shaft furnace

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Method and system for adjusting the flow rate of charge material in a charging process of a shaft furnace

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Physics

Computer system and method for controlling charging of a blast furnace by means of a user interface

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Lower sealing valve unit for a blast furnace top charging system

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Bustle pipe arrangement

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SHAFT FURNACE CHARGING INSTALLATION

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Method of producing pulverized coal

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HYDROMETALLURGICAL METHOD FOR THE REUSE OF SECONDARY ZINC OXIDES RICH IN FLUORIDE AND CHLORIDE

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Bustle pipe arrangement

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Injection system for solid particles

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COOLING PLATE FOR A METALLURGICAL FURNACE AND ITS METHOD OF MANUFACTURING

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Method for operating a blast furnace and blast furnace installation

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Dust-catcher for blast furnace gas

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Method for producing pulverized coal

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METHOD FOR PRODUCING PULVERIZED COAL

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LOWER SEALING VALVE ASSEMBLY FOR A SHAFT FURNACE CHARGING INSTALLATION AND VALVE ACTUATION MECHANISM THEREFORE

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Method for feeding pulverised coal into a blast furnace

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Shaft furnace charging device and corresponding distribution chute

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CHARGING INSTALLATION FOR A SHAFT FURNACE AND LOWER SEALING VALVE ASSEMBLY THEREFORE

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