Class B21D : WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING
Subclass 1/02: Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom (B21D 3/00 takes precedence); Stretching sheet metal combined with rolling (working sheet metal of limited length by stretching B21D 25/00; by localised hammering B21D 31/06) by rollers (B21D 1/06 takes precedence)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12220770 | Pre-stressed steel sheet | Dec 10, 20 | Feb 11, 25 | POSCO |
| 12162055 | Tensioning pulley set for a straightening line for straightening a strip, re-rolling stand line and method of operating a straightening line | Nov 23, 21 | Dec 10, 24 | VDEh-Betriebsforschungsinstitut GmbH |
| 11779982 | Edge leveler with offset rollers | Jun 14, 22 | Oct 10, 23 | FuelCell Energy Inc. |
| 11752533 | Control method of a leveling machine and leveling machine | Feb 22, 22 | Sep 12, 23 | FAGOR ARRASATE S. COOP. |
| 11731182 | Integrated straightener head modifications and improvements | Jan 02, 18 | Aug 22, 23 | Not available |
| 11559833 | Dynamic straightening method for left/right tilt | Sep 28, 20 | Jan 24, 23 | TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY |
| 11525601 | Flexible duct connector processing system | Apr 27, 20 | Dec 13, 22 | Production Products, Inc. |
| 11446723 | Methods and systems for automatically adjusting operational parameters of one or more leveling machines | Feb 28, 20 | Sep 20, 22 | Honda Motor Co. Ltd. |
| 11400502 | Edge leveler with offset rollers | Sep 09, 19 | Aug 02, 22 | FuelCell Energy, Inc. |
| 11247732 | Suspension support bracket and method for manufacturing suspension support bracket | Jul 23, 19 | Feb 15, 22 | 501 Toyota Jidosha Kabushiki Kaisha |
| 11235368 | Method for marking workpieces, and workpiece | Sep 21, 17 | Feb 01, 22 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V. |
| 11207723 | Straightening apparatus for metal products and method to replace at least one straightening roll of said apparatus | Dec 14, 18 | Dec 28, 21 | Danieli & C. Officine Meccaniche S.p.A. |
| 11179759 | System and method for removing flatness faults from a metal flat product | Jul 19, 16 | Nov 23, 21 | SMS group GMBH |
| 11173531 | Roller leveler with upper and lower leveling rollers and method for the simple and rapid inspection, maintenance, and servicing of the upper leveling rollers of a roller leveler | Apr 03, 17 | Nov 16, 21 | ARKU MASCHINENBAU GmbH |
| 11045850 | Apparatus and methods to increase the efficiency of roll-forming and leveling systems | Mar 08, 19 | Jun 29, 21 | The Bradbury Company Inc. |
| 10994316 | Straightening system and straightening method | Jul 27, 16 | May 04, 21 | POSCO |
| 10766061 | Device and method for planishing metal product | Sep 27, 17 | Sep 08, 20 | PRIMETALS TECHNOLOGIES FRANCE SAS |
| 10710135 | Dual-stage multi-roll leveler and work roll assembly | Dec 21, 16 | Jul 14, 20 | Machine Concepts Inc. |
| 10603704 | Straightening apparatus and method of changing rollers thereof | Mar 08, 16 | Mar 31, 20 | SMS GROUP GMBH |
| 10569319 | Direct coupled eccentric driven pilot release straightener | Sep 15, 16 | Feb 25, 20 | Not available |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0065,387 | METHOD FOR IMPROVING DELAYED FRACTURE CHARACTERISTICS OF METAL SHEET, METHOD FOR PRODUCING BLANK, METHOD FOR PRODUCING PRESS-FORMED ARTICLE, AND PRESS-FORMED ARTICLE | Sep 01, 22 | Feb 27, 25 | JFE Steel Corporation |
| 2024/0351,084 | Straightening machine and method for straightening | Aug 19, 22 | Oct 24, 24 | SMS group GMBH |
| 2024/0207,915 | FLATTENING DEVICE | Mar 11, 24 | Jun 27, 24 | Not available |
| 2024/0091,837 | DRAWING AND STRAIGHTENING UNIT FOR METAL PRODUCTS, AND CORRESPONDING METHOD | Nov 24, 21 | Mar 21, 24 | Not available |
| 2023/0294,153 | STRAIGHTENING MACHINE AND METHOD FOR STRAIGHTENING A METAL STRIP OR A FLAT METAL PART | Jun 09, 21 | Sep 21, 23 | Kohler Maschinenbau GmbH |
| 2021/0220,888 | SYSTEM FOR FLATTENING STEEL PLATES | Jan 21, 21 | Jul 22, 21 | Not available |
| 2021/0053,097 | METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR SETTING THE BENDING OF AT LEAST ONE STRAIGHTENING ROLLER OF A ROLLER STRAIGHTENING MACHINE | Oct 16, 18 | Feb 25, 21 | Not available |
| 2020/0346,264 | SHAPE MEASUREMENT APPARATUS, WARPAGE CORRECTION APPARATUS, AND CONTINUOUS PLATING FACILITY FOR METAL STRIP, AND WARPAGE CORRECTION METHOD FOR METAL STRIP | Nov 24, 17 | Nov 05, 20 | PRIMETALS TECHNOLOGIES JAPAN, LTD. |
| 2020/0269,300 | ROLLER LEVELER AND METHOD FOR OPERATING SAME | Mar 13, 18 | Aug 27, 20 | Not available |
| 2020/0261,957 | WARPAGE CORRECTION APPARATUS FOR METAL STRIP AND CONTINUOUS PLATING FACILITY FOR METAL STRIP | Nov 30, 17 | Aug 20, 20 | PRIMETALS TECHNOLOGIES JAPAN, LTD. |
| 2020/0230,677 | METHOD FOR OPERATING A ROLL STRAIGHTENING MACHINE, AND ROLL STRAIGHTENING MACHINE | Mar 12, 18 | Jul 23, 20 | Not available |
| 2020/0171,559 | MULTI-ROLL METAL STRIP LEVELER | Jul 17, 18 | Jun 04, 20 | Not available |
| 2020/0086,370 | EDGE LEVELER WITH OFFSET ROLLERS | Sep 09, 19 | Mar 19, 20 | Not available |
| 2019/0184,439 | STRAIGHTENING APPARATUS FOR METAL PRODUCTS AND METHOD TO REPLACE AT LEAST ONE STRAIGHTENING ROLL OF SAID APPARATUS | Dec 14, 18 | Jun 20, 19 | Not available |
| 2018/0333,758 | STRAIGHTENING MACHINE AND METHOD FOR THE OPERATION THEREOF | May 17, 18 | Nov 22, 18 | Kohler Maschinenbau GmbH |
| 2018/0221,929 | INTELLIGENT COIL LEVELING VALIDATING SYSTEM AND VALIDATING METHOD THEREOF | Jun 01, 17 | Aug 09, 18 | Not available |
| 2018/0169,726 | DUAL-STAGE MULTI-ROLL LEVELER AND WORK ROLL ASSEMBLY | Dec 21, 16 | Jun 21, 18 | Not available |
| 2018/0085,806 | DEVICE AND METHOD FOR PLANISHING METAL PRODUCT | Sep 27, 17 | Mar 29, 18 | Not available |
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