Class C21D : MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
Subclass 1/42: General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) Methods of heating (C21D 1/06 takes precedence) Induction heating
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12258648 | Method for producing thermo-mechanically produced profiled hot-rolled strip products | Dec 18, 19 | Mar 25, 25 | voestapline Stahl GmbH |
| 12252755 | Process for manufacturing a flat steel product having an aluminum-based corrosion-resistant coating, and flat steel product having an aluminum-based corrosion-resistant coating | Aug 17, 21 | Mar 18, 25 | ThyssenKrupp Steel Europe AG |
| 12241139 | Method for manufacturing an austenitic steel component and use of the component | Nov 09, 16 | Mar 04, 25 | OUTOKUMPU OYJ |
| 12188720 | Apparatus and methods for the drying treatment of an inductor | Feb 21, 20 | Jan 07, 25 | DANIELI AUTOMATION S.P.A. |
| 12123274 | Hardfaced metal surface and method of manufacture | Sep 16, 20 | Oct 22, 24 | Hydril USA Distribution, LLC |
| 12121950 | Conductive post-furnace heating of sheet for hot forming | May 06, 20 | Oct 22, 24 | Magna International Inc. |
| 12110565 | Procedure for hardening slides of a perforating press and the slides obtained | Dec 05, 22 | Oct 08, 24 | Soenen Technology NV |
| 12104221 | Metal strip induction heating method and induction heating apparatus | Mar 12, 19 | Oct 01, 24 | 501 Nippon Steel Corporation |
| 12090535 | Heating device for the inductive heating of a flat steel strip in a hot rolling mill | Mar 04, 20 | Sep 17, 24 | PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
| 12053816 | Apparatus and method for manufacturing rack bar | Oct 18, 19 | Aug 06, 24 | Neturen Co. Ltd. |
| 12054803 | Dual pass, dual anneal welding method for joining high strength steels | Nov 19, 18 | Aug 06, 24 | Arcelormittal Commercial RPS S.A.R.L. |
| 12028956 | Large scale metal forming | Mar 12, 19 | Jul 02, 24 | Illinois Tool Works Inc. |
| 12017249 | Method for forming coating film on constant velocity universal joint | Dec 07, 22 | Jun 25, 24 | NTN Corporation |
| 12012641 | Combined heating and transfer of work-piece blanks | Nov 23, 20 | Jun 18, 24 | GM Global Technology Operations LLC |
| 11987859 | Energy-efficient production of a ferritic hot-rolled strip in an integrated casting-rolling plant | Dec 14, 21 | May 21, 24 | PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
| 11898217 | Method for producing steel plate member | Sep 30, 20 | Feb 13, 24 | 501 Toyota Jidosha Kabushiki Kaisha |
| 11846001 | Split multiple coil electric induction heat treatment systems for simultaneous heating of multiple features of a bearing component | Feb 03, 21 | Dec 19, 23 | Inductoheat Inc. |
| 11840751 | Boron-based amorphous alloys and preparation method thereof | May 19, 20 | Dec 12, 23 | DALIAN UNIVERSITY OF TECHNOLOGY |
| 11821066 | Systems and methods for non-contact tensioning of a metal strip | Jun 21, 21 | Nov 21, 23 | Novelis Inc. |
| 11814693 | High strength steel tube and method of manufacturing a high strength steel tube | Dec 14, 21 | Nov 14, 23 | Benteler Steel/Tube GmbH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0066,868 | METHOD TO ACHIEVE VARIABLE PROPERTIES WITHIN A COMPONENT USING COATING FREE PRESS HARDENED STEEL | Sep 15, 23 | Feb 27, 25 | Not available |
| 2025/0025,927 | CONDUCTIVE POST-FURNACE HEATING OF SHEET FOR HOT FORMING | Oct 04, 24 | Jan 23, 25 | Not available |
| 2024/0368,718 | HEAT- TREATED STEEL AND HEAT TREATMENT METHOD FOR STEEL | Apr 12, 22 | Nov 07, 24 | Not available |
| 2024/0351,094 | APPARATUS AND METHOD FOR MANUFACTURING RACK BAR | Jul 02, 24 | Oct 24, 24 | Not available |
| 2024/0342,869 | TOOL ACCESSORY AND METHOD OF MANUFACTURING SAME | Apr 15, 24 | Oct 17, 24 | Not available |
| 2024/0344,159 | PROCESS FOR MANUFACTURING VEHICLE PARTS | Aug 17, 22 | Oct 17, 24 | Not available |
| 2024/0271,236 | SPATIALLY SELECTIVE ELECTROMAGNETIC FIELD ASSISTED PROCESSING OF BULK CRYSTALLINE SOFT MAGNETIC ALLOYS | Jun 30, 22 | Aug 15, 24 | Not available |
| 2024/0261,842 | METHOD AND ARRANGEMENT FOR PRODUCING A HARDENED SHEET METAL PRODUCT | Mar 15, 24 | Aug 08, 24 | TCTECH SWEDEN AB |
| 2024/0254,578 | SELECTIVE HEAT TREATMENT OF METALS USING MULTIPLE INDUCTION HEATING COILS | Feb 01, 23 | Aug 01, 24 | Not available |
| 2024/0254,589 | SELECTIVE HEAT TREATMENT OF METALS USING A COIL-IN-FURNACE SYSTEM | Feb 01, 23 | Aug 01, 24 | Not available |
| 2024/0209,471 | ENERGY-EFFICIENT PRODUCTION OF A FERRITIC HOT-ROLLED STRIP IN AN INTEGRATED CASTING-ROLLING PLANT | Mar 08, 24 | Jun 27, 24 | Not available |
| 2024/0093,327 | CONTINUOUS ANNEALER FOR WIRE | Feb 01, 22 | Mar 21, 24 | Not available |
| 2023/0357,873 | METHOD FOR REPAIRING A COMPONENT BY HEAT TREATING | Sep 21, 21 | Nov 09, 23 | Caterpillar Motoren GmbH & Co. KG |
| 2023/0220,506 | INDUCTION HARDENING SYSTEM | Dec 30, 22 | Jul 13, 23 | Not available |
| 2022/0112,568 | METHOD FOR PRODUCING A STEEL BLANK AND TEMPERATURE-ADJUSTING STATION | Oct 13, 21 | Apr 14, 22 | Not available |
| 2022/0033,923 | HEAT TREATMENT METHOD | Sep 24, 19 | Feb 03, 22 | DELTA KOGYO CO., LTD. |
| 2021/0033,144 | ADJUSTABLE SPACER WITH HARDENED ENDS | Oct 16, 20 | Feb 04, 21 | Temper Corporation |
| 2020/0048,754 | LOW PRESSURE INDUCTION CARBURIZATION | Oct 17, 19 | Feb 13, 20 | Honeywell International Inc. |
| 2019/0296,619 | LOCALIZED INDUCTION HEAT TREATMENT | Mar 20, 18 | Sep 26, 19 | Not available |
| 2019/0193,131 | A Method For Forming A Hollow Of A Ferritic FeCrAl Alloy Into A Tube | Jun 22, 17 | Jun 27, 19 | SANDVIK MATERIALS TECHNOLOGY DEUTSCHLAND GMBH |
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