for rails

Industry

CPC
C21D9/04

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21DMODIFYING 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 C21D9/00Heat treatment

Current Industry

C21D9/04for rails

Industries

Patents Grantslast 30 patents

Information Patent Grant
Gradient-structured ultra-fine bainitic low-alloy rail steel and pr...
- Patent number 12,084,737
- Issue date Sep 10, 2024
- Yanshan University
- Zhinan Yang
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for optimizing microstructure of rail welded joint
- Patent number 11,866,801
- Issue date Jan 9, 2024
- PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
- Xin Lu
- C21 - METALLURGY OF IRON
Information Patent Grant
Deeply-hardened-surface turnout rail with high degree of undercooli...
- Patent number 11,655,514
- Issue date May 23, 2023
- PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
- Jun Yuan
- C21 - METALLURGY OF IRON
Information Patent Grant
Track link for a track joint assembly having wear band with lengthw...
- Patent number 11,584,457
- Issue date Feb 21, 2023
- Caterpillar Inc.
- Kevin Steiner
- C21 - METALLURGY OF IRON
Information Patent Grant
Rail
- Patent number 11,566,307
- Issue date Jan 31, 2023
- JFE Steel Corporation
- Minoru Honjo
- C21 - METALLURGY OF IRON
Information Patent Grant
Rail and method for manufacturing same
- Patent number 11,492,689
- Issue date Nov 8, 2022
- JFE Steel Corporation
- Keisuke Ando
- C21 - METALLURGY OF IRON
Information Patent Grant
Cooling device and production method for rail
- Patent number 11,453,929
- Issue date Sep 27, 2022
- JFE Steel Corporation
- Kenji Okushiro
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for selecting rail steel and wheel steel
- Patent number 11,401,591
- Issue date Aug 2, 2022
- JFE Steel Corporation
- Minoru Honjo
- C21 - METALLURGY OF IRON
Information Patent Grant
Post-heating treatment device and post-heating treatment method
- Patent number 11,365,458
- Issue date Jun 21, 2022
- DAI-ICHI High Frequency Co., Ltd.
- Kenji Sugiyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
7000 series aluminum alloy ladder, multipurpose ladder and method
- Patent number 11,280,133
- Issue date Mar 22, 2022
- Werner Co.
- Clint D. Badowski
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for producing rail
- Patent number 11,111,555
- Issue date Sep 7, 2021
- JFE Steel Corporation
- Minoru Honjo
- C21 - METALLURGY OF IRON
Information Patent Grant
Railway wheel
- Patent number 11,110,741
- Issue date Sep 7, 2021
- Nippon Steel Corporation
- Manabu Kubota
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Post-heating treatment device and post-heating treatment method
- Patent number 11,053,565
- Issue date Jul 6, 2021
- DAI-ICHI High Frequency Co., Ltd.
- Kenji Sugiyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rail
- Patent number 10,995,396
- Issue date May 4, 2021
- Nippon Steel Corporation
- Masaharu Ueda
- C21 - METALLURGY OF IRON
Information Patent Grant
Inline laser-based system and method for thermal treatment of conti...
- Patent number 10,934,603
- Issue date Mar 2, 2021
- Illinois Tool Works Inc.
- Dorival Goncalves Tecco
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Track link for a track joint assembly having wear band with lengthw...
- Patent number 10,870,455
- Issue date Dec 22, 2020
- Caterpillar Inc.
- Kevin Steiner
- C21 - METALLURGY OF IRON
Information Patent Grant
Mobile flash butt welding method for 136RE+SS heat-treated rail
- Patent number 10,870,165
- Issue date Dec 22, 2020
- PANGANG GROUP RESEARCH INSTITUTE CO., LTD.
- Xin Lu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for joining steel rails with controlled weld heat input
- Patent number 10,851,436
- Issue date Dec 1, 2020
- CF&I STEEL L.P.
- Gregory Ryan Lehnhoff
- C21 - METALLURGY OF IRON
Information Patent Grant
High-toughness and plasticity hypereutectoid rail and manufacturing...
- Patent number 10,850,315
- Issue date Dec 1, 2020
- PANGANG GROUP RESEARCH INSTITUTE CO., LTD.
- Zhenyu Han
- C21 - METALLURGY OF IRON
Information Patent Grant
Onsite steel rail laser processing engineering vehicle
- Patent number 10,808,364
- Issue date Oct 20, 2020
- WUHAN NRD LASER ENGINEERING CO., LTD.
- Xiaoyan Zeng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Friction apparatus
- Patent number 10,662,588
- Issue date May 26, 2020
- KOREA RAILROAD RESEARCH INSTITUTE
- Yong Hyeon Cho
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of making high strength steel crane rail
- Patent number 10,604,819
- Issue date Mar 31, 2020
- ArcelorMittal Investigacion y Desarrollo, S. L.
- Bruce L. Bramfitt
- C21 - METALLURGY OF IRON
Information Patent Grant
Rail and production method therefor
- Patent number 10,563,357
- Issue date Feb 18, 2020
- Nippon Steel Corporation
- Masaharu Ueda
- C21 - METALLURGY OF IRON
Information Patent Grant
Rail manufacturing method and manufacturing equipment
- Patent number 10,563,278
- Issue date Feb 18, 2020
- JFE Steel Corporation
- Kenji Okushiro
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Heat treatment device, heat treatment method, and rail steel
- Patent number 10,544,479
- Issue date Jan 28, 2020
- Nippon Steel Corporation
- Kenichi Karimine
- C21 - METALLURGY OF IRON
Information Patent Grant
Stress-relief heat treatment apparatus
- Patent number 10,526,674
- Issue date Jan 7, 2020
- Nippon Steel Corporation
- Kenichi Karimine
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rail
- Patent number 10,494,704
- Issue date Dec 3, 2019
- Nippon Steel Corporation
- Masaharu Ueda
- C21 - METALLURGY OF IRON
Information Patent Grant
Head hardened rail manufacturing method and manufacturing apparatus
- Patent number 10,472,693
- Issue date Nov 12, 2019
- JFE Steel Corporation
- Hideo Kijima
- C21 - METALLURGY OF IRON
Information Patent Grant
Pearlitic rail and method for manufacturing pearlitic rail
- Patent number 10,253,397
- Issue date Apr 9, 2019
- JFE Steel Corporation
- Tatsumi Kimura
- C21 - METALLURGY OF IRON
Information Patent Grant
Rail and production method therefor
- Patent number 10,233,512
- Issue date Mar 19, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Masaharu Ueda
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING HYPEREUTECTOID STEEL RAIL RESISTANT TO CONTACT...
- Publication number 20240279784
- Publication date Aug 22, 2024
- Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
- Jun YUAN
- C21 - METALLURGY OF IRON
Information Patent Application
Forced air cooling for cooling long steel products
- Publication number 20240254580
- Publication date Aug 1, 2024
- SMS group GMBH
- Ran YANG
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
GRADIENT-STRUCTURED ULTRA-FINE BAINITIC LOW-ALLOY RAIL STEEL AND PR...
- Publication number 20240218478
- Publication date Jul 4, 2024
- Yanshan University
- Zhinan YANG
- C21 - METALLURGY OF IRON
Information Patent Application
FROG FOR SWITCHES AND CROSSINGS
- Publication number 20240150971
- Publication date May 9, 2024
- VOSSLOH COGIFER
- Francesco BARRESI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MODERATE-STRENGTH STEEL RAIL AND PRODUCTION METHOD THEREOF
- Publication number 20240068063
- Publication date Feb 29, 2024
- Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
- Jun YUAN
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
STEEL FOR RAILS AND A METHOD OF MANUFACTURING OF A RAIL THEREOF
- Publication number 20240002966
- Publication date Jan 4, 2024
- ARCELORMITTAL
- Diego CARRASCAL
- C21 - METALLURGY OF IRON
Information Patent Application
TRACK PART AND METHOD FOR PRODUCING A TRACK PART
- Publication number 20230416858
- Publication date Dec 28, 2023
- Voestalpine Schienen GmbH
- Christoph KAMMERHOFER
- C21 - METALLURGY OF IRON
Information Patent Application
RAIL HAVING EXCELLENT FATIGUE CRACK PROPAGATION RESISTANCE CHARACTE...
- Publication number 20230279517
- Publication date Sep 7, 2023
- JFE STEEL CORPORATION
- Keisuke Ando
- C21 - METALLURGY OF IRON
Information Patent Application
RAIL AND METHOD FOR PRODUCING THE SAME
- Publication number 20230250505
- Publication date Aug 10, 2023
- JFE STEEL CORPORATION
- Kazuya Tokunaga
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HARDNESS PREDICTION METHOD OF HEAT HARDENED RAIL, THERMAL TREATMENT...
- Publication number 20230221231
- Publication date Jul 13, 2023
- JFE STEEL CORPORATION
- Kenichi Osuka
- C21 - METALLURGY OF IRON
Information Patent Application
OVERHEAD RAIL AND TROLLEY SYSTEM
- Publication number 20220396294
- Publication date Dec 15, 2022
- PELLERIN MILNOR CORPORATION
- Ken GAULTER
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
AIR-HARDENED MACHINE COMPONENTS
- Publication number 20220195550
- Publication date Jun 23, 2022
- Caterpillar Inc.
- Matthew Thomas Kiser
- C21 - METALLURGY OF IRON
Information Patent Application
DEEPLY-HARDENED-SURFACE TURNOUT RAIL WITH HIGH DEGREE OF UNDERCOOLI...
- Publication number 20220127689
- Publication date Apr 28, 2022
- Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
- Jun YUAN
- C21 - METALLURGY OF IRON
Information Patent Application
RAIL
- Publication number 20220120039
- Publication date Apr 21, 2022
- NIPPON STEEL CORPORATION
- Masaharu UEDA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR OPTIMIZING MICROSTRUCTURE OF RAIL WELDED JOINT
- Publication number 20220119912
- Publication date Apr 21, 2022
- Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
- Xin LU
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF PRODUCING STEEL MATERIAL, APPARATUS THAT COOLS STEEL MATE...
- Publication number 20220112571
- Publication date Apr 14, 2022
- JFE STEEL CORPORATION
- Kenji Okushiro
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
POST-WELD HEAT TREATMENT METHOD FOR 1,300 MPa-LEVEL LOW-ALLOY HEAT...
- Publication number 20220064746
- Publication date Mar 3, 2022
- Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
- Wei BAI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF MAKING A TEE RAIL HAVING A HIGH STRENGTH BASE
- Publication number 20220042128
- Publication date Feb 10, 2022
- ARCELORMITTAL
- Raymond UHRIN
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR FIXING A RAIL OF A RAIL TRACK WITH THERMAL CONDITIONING...
- Publication number 20210348246
- Publication date Nov 11, 2021
- MATISA MATERIEL INDUSTRIEL SA
- Marc-Antoine SAVOYAT
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
COOLING DEVICE AND PRODUCTION METHOD FOR RAIL
- Publication number 20210348251
- Publication date Nov 11, 2021
- JFE STEEL CORPORATION
- Kenji Okushiro
- C21 - METALLURGY OF IRON
Information Patent Application
RAIL
- Publication number 20210269901
- Publication date Sep 2, 2021
- JFE STEEL CORPORATION
- Minoru HONJO
- C21 - METALLURGY OF IRON
Information Patent Application
RAIL AND METHOD FOR MANUFACTURING SAME
- Publication number 20210102277
- Publication date Apr 8, 2021
- JFE STEEL CORPORATION
- Keisuke ANDO
- C21 - METALLURGY OF IRON
Information Patent Application
TRACK LINK FOR A TRACK JOINT ASSEMBLY HAVING WEAR BAND WITH LENGTHW...
- Publication number 20210024149
- Publication date Jan 28, 2021
- Caterpillar Inc.
- Kevin Steiner
- C21 - METALLURGY OF IRON
Information Patent Application
A COATED STEEL SUBSTRATE
- Publication number 20200318213
- Publication date Oct 8, 2020
- ARCELORMITTAL
- Carlos LALIENA IRANZO
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR MANUFACTURING A RAIL AND CORRESPONDING RAIL
- Publication number 20200291498
- Publication date Sep 17, 2020
- ARCELORMITTAL
- José ARANCON ALVAREZ
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING RAIL
- Publication number 20200277682
- Publication date Sep 3, 2020
- JFE STEEL CORPORATION
- Minoru HONJO
- C21 - METALLURGY OF IRON
Information Patent Application
FROG FOR SWITCHES AND CROSSINGS
- Publication number 20200232167
- Publication date Jul 23, 2020
- VOSSLOH COGIFER
- Francesco BARRESI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
TRACK PART AND METHOD FOR PRODUCING A TRACK PART
- Publication number 20200199703
- Publication date Jun 25, 2020
- Voestalpine Schienen GmbH
- Christoph KAMMERHOFER
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR REINFORCING RAIL BY LASER AND AUXILIARY HEAT SOURCE EFFI...
- Publication number 20200199698
- Publication date Jun 25, 2020
- Wuhan Hivalue Intelaser Ltd.
- Xiaoyan ZENG
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
TRACK LINK FOR A TRACK JOINT ASSEMBLY HAVING WEAR BAND WITH LENGTHW...
- Publication number 20200079446
- Publication date Mar 12, 2020
- Caterpillar Inc.
- Kevin Steiner
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Gradient-structured ultra-fine bainitic low-alloy rail steel and pr...

Method for optimizing microstructure of rail welded joint

Deeply-hardened-surface turnout rail with high degree of undercooli...

Track link for a track joint assembly having wear band with lengthw...

Rail

Rail and method for manufacturing same

Cooling device and production method for rail

Method for selecting rail steel and wheel steel

Post-heating treatment device and post-heating treatment method

7000 series aluminum alloy ladder, multipurpose ladder and method

Method for producing rail

Railway wheel

Post-heating treatment device and post-heating treatment method

Rail

Inline laser-based system and method for thermal treatment of conti...

Track link for a track joint assembly having wear band with lengthw...

Mobile flash butt welding method for 136RE+SS heat-treated rail

Method for joining steel rails with controlled weld heat input

High-toughness and plasticity hypereutectoid rail and manufacturing...

Onsite steel rail laser processing engineering vehicle

Friction apparatus

Method of making high strength steel crane rail

Rail and production method therefor

Rail manufacturing method and manufacturing equipment

Heat treatment device, heat treatment method, and rail steel

Stress-relief heat treatment apparatus

Rail

Head hardened rail manufacturing method and manufacturing apparatus

Pearlitic rail and method for manufacturing pearlitic rail

Rail and production method therefor

Patents Applicationslast 30 patents

METHOD FOR PRODUCING HYPEREUTECTOID STEEL RAIL RESISTANT TO CONTACT...

Forced air cooling for cooling long steel products

GRADIENT-STRUCTURED ULTRA-FINE BAINITIC LOW-ALLOY RAIL STEEL AND PR...

FROG FOR SWITCHES AND CROSSINGS

MODERATE-STRENGTH STEEL RAIL AND PRODUCTION METHOD THEREOF

STEEL FOR RAILS AND A METHOD OF MANUFACTURING OF A RAIL THEREOF

TRACK PART AND METHOD FOR PRODUCING A TRACK PART

RAIL HAVING EXCELLENT FATIGUE CRACK PROPAGATION RESISTANCE CHARACTE...

RAIL AND METHOD FOR PRODUCING THE SAME

HARDNESS PREDICTION METHOD OF HEAT HARDENED RAIL, THERMAL TREATMENT...

OVERHEAD RAIL AND TROLLEY SYSTEM

AIR-HARDENED MACHINE COMPONENTS

DEEPLY-HARDENED-SURFACE TURNOUT RAIL WITH HIGH DEGREE OF UNDERCOOLI...

RAIL

METHOD FOR OPTIMIZING MICROSTRUCTURE OF RAIL WELDED JOINT

METHOD OF PRODUCING STEEL MATERIAL, APPARATUS THAT COOLS STEEL MATE...

POST-WELD HEAT TREATMENT METHOD FOR 1,300 MPa-LEVEL LOW-ALLOY HEAT...

METHOD OF MAKING A TEE RAIL HAVING A HIGH STRENGTH BASE

METHOD FOR FIXING A RAIL OF A RAIL TRACK WITH THERMAL CONDITIONING...

COOLING DEVICE AND PRODUCTION METHOD FOR RAIL

RAIL

RAIL AND METHOD FOR MANUFACTURING SAME

TRACK LINK FOR A TRACK JOINT ASSEMBLY HAVING WEAR BAND WITH LENGTHW...

A COATED STEEL SUBSTRATE

METHOD FOR MANUFACTURING A RAIL AND CORRESPONDING RAIL

METHOD FOR PRODUCING RAIL

FROG FOR SWITCHES AND CROSSINGS

TRACK PART AND METHOD FOR PRODUCING A TRACK PART

METHOD FOR REINFORCING RAIL BY LASER AND AUXILIARY HEAT SOURCE EFFI...

TRACK LINK FOR A TRACK JOINT ASSEMBLY HAVING WEAR BAND WITH LENGTHW...