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 1/30: General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) Methods of annealing Stress-relieving
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12211633 | Non-oriented electrical steel sheet | Nov 13, 20 | Jan 28, 25 | 501 Nippon Steel Corporation |
| 12181012 | Damper spring | Oct 15, 20 | Dec 31, 24 | 501 Nippon Steel Corporation; AISIN CORPORATION; NHK Spring Co. LTD; NIPPON STEEL SG WIRE CO., LTD.; |
| 12165794 | Soft magnetic alloy and magnetic device | Jan 29, 19 | Dec 10, 24 | 501 TDK Corporation |
| 12036604 | Electron beam additive manufacturing system and control components | Oct 08, 18 | Jul 16, 24 | Ferranti Sciaky Inc. |
| 12006994 | Valve spring | Oct 15, 20 | Jun 11, 24 | 501 Nippon Steel Corporation; NHK Spring Co. Ltd.; NIPPON STEEL SG WIRE CO., LTD.; |
| 11814693 | High strength steel tube and method of manufacturing a high strength steel tube | Dec 14, 21 | Nov 14, 23 | Benteler Steel/Tube GmbH |
| 11703281 | Vacuum forming method | Jun 13, 22 | Jul 18, 23 | Ducommun Aerostructures, Inc. |
| 11667985 | Composition for forming insulation film of oriented electrical steel sheet, method for forming insulation film by using same, and oriented electrical steel sheet having insulation film formed therein | Dec 22, 15 | Jun 06, 23 | POSCO CO., LTD. |
| 11472532 | Extrados structural element made from an aluminium copper lithium alloy | Jun 18, 14 | Oct 18, 22 | Constellium Issoire |
| 11459634 | Method for manufacturing stress-relief-annealing-resistant, low-iron-loss grain-oriented silicon steel | Jun 21, 18 | Oct 04, 22 | Baoshan Iron & Steel Co., Ltd. |
| 11408049 | Cold rolled steel wire, method and reinforcement of flexible conduits | Oct 08, 19 | Aug 09, 22 | ARCELORMITTAL WIRE FRANCE |
| 11359863 | Vacuum forming method | Jun 08, 20 | Jun 14, 22 | Ducommun Aerostructures, Inc. |
| 11136643 | High-strength steel sheet and method for producing same | Aug 10, 17 | Oct 05, 21 | JFE Steel Corporation |
| 11104973 | Method for producing non-oriented electrical steel sheet, method for producing motor core, and motor core | Jan 19, 18 | Aug 31, 21 | JFE STEEEL CORPORATION |
| 10744600 | Metal plate for laser processing and method for producing stainless steel plate for laser processing | Apr 18, 17 | Aug 18, 20 | 501 Nippon Steel Corporation |
| 10718041 | Solid-state welding of coarse grain powder metallurgy nickel-based superalloys | Jun 26, 17 | Jul 21, 20 | RAYTHEON TECHNOLOGIES CORPORATION |
| 10711321 | Adhesive coating composition for non-oriented electrical steel sheet, non-oriented electrical steel sheet product, and manufacturing method therefor | Jul 27, 16 | Jul 14, 20 | POSCO |
| 10704126 | Non-normalized steel composition and connecting rod using the same, and method of manufacturing the connecting rod | Nov 30, 14 | Jul 07, 20 | Hyundai Motor Company; Kia Motors Corporation; |
| 10689722 | Aluminum foil annealing furnace | Aug 16, 17 | Jun 23, 20 | NINGBO SACHSEN INDUSTRY TECHNOLOGY CO., LTD. |
| 10677529 | Vacuum forming method | Jun 15, 17 | Jun 09, 20 | Ducommun Aerostructures, Inc. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0075,281 | BRAKE DISC AND MANUFACTURING METHOD THEREOF | Feb 21, 24 | Mar 06, 25 | Hyundai Motor Company; KIA CORPORATION; |
| 2025/0066,892 | NON-ORIENTED ELECTRICAL STEEL SHEET AND MOTOR CORE COMPRISING SAME | Dec 21, 22 | Feb 27, 25 | POSCO CO., LTD |
| 2025/0059,618 | NON-ORIENTED ELECTRICAL STEEL SHEET, METHOD FOR MANUFACTURING SAME, AND MOTOR CORE COMPRISING SAME | Dec 21, 22 | Feb 20, 25 | POSCO CO., LTD |
| 2025/0022,639 | NON-ORIENTED ELECTRICAL STEEL SHEET, IRON CORE AND MOTOR CORE, AND METHOD FOR MANUFACTURING IRON CORE AND MOTOR CORE | Oct 12, 22 | Jan 16, 25 | 501 Nippon Steel Corporation |
| 2025/0012,382 | STEEL PIPE FOR OIL CYLINDER AND MANUFACTURING METHOD THEREFOR | Nov 24, 22 | Jan 09, 25 | Not available |
| 2025/0011,890 | Methods and Apparatuses Related to Payload Launch Vehicles | Sep 20, 24 | Jan 09, 25 | Relativity Space, Inc. |
| 2024/0367,232 | ELECTRON BEAM ADDITIVE MANUFACTURING SYSTEM AND CONTROL COMPONENTS | Jul 15, 24 | Nov 07, 24 | Not available |
| 2024/0344,163 | Methods and Apparatuses Related to Payload Launch Vehicles | Jun 25, 24 | Oct 17, 24 | Relativity Space, Inc. |
| 2024/0321,492 | WOUND CORE AND METHOD FOR PRODUCING WOUND CORE | Jun 08, 22 | Sep 26, 24 | JFE Steel Corporation |
| 2024/0271,241 | METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET | May 24, 22 | Aug 15, 24 | JFE Steel Corporation |
| 2024/0254,610 | Hot-Formed Steel Part and Manufacturing Method | Jun 01, 22 | Aug 01, 24 | Not available |
| 2024/0233,990 | NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THE SAME | Nov 30, 23 | Jul 11, 24 | Not available |
| 2024/0013,959 | NON ORIENTED ELECTRICAL STEEL SHEET, IRON CORE, MANUFACTURING METHOD OF IRON CORE, MOTOR, AND MANUFACTURING METHOD OF MOTOR | Jul 10, 23 | Jan 11, 24 | 501 Nippon Steel Corporation |
| 2020/0362,433 | METHOD FOR MANUFACTURING STRESS-RELIEF-ANNEALING-RESISTANT, LOW-IRON-LOSS GRAIN-ORIENTED SILICON STEEL | Jun 21, 18 | Nov 19, 20 | Not available |
| 2015/0232,972 | NON-NORMALIZED STEEL COMPOSITION AND CONNECTING ROD USING THE SAME, AND METHOD OF MANUFACTURING THE CONNECTING ROD | Nov 30, 14 | Aug 20, 15 | HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, |
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