B21J 5/025
Closed die forging
Official title: {Closed die forging}
B21J5/025 (Closed die forging) appears on 94 US grants and 136 published applications in this corpus.
Search patents in B21J- Granted patents
- 94
- Published applications
- 136
- Assignees
- 81
- Inventors
- 293
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 0 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 2 |
| 2014 | 1 | 9 |
| 2015 | 8 | 30 |
| 2016 | 8 | 6 |
| 2017 | 19 | 11 |
| 2018 | 9 | 14 |
| 2019 | 9 | 11 |
| 2020 | 8 | 17 |
| 2021 | 10 | 8 |
| 2022 | 9 | 6 |
| 2023 | 3 | 4 |
| 2024 | 4 | 3 |
| 2025 | 2 | 4 |
| 2026 | 1 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Sheet metal coining method utilizing bilateral coin punching16 Jun 2026US 12,654,216 B2Schaeffler Technologies AG & Co. KG
- Forging and pressing production system and management method therefor9 Dec 2025US 12,491,557 B2
- Method for producing metal components and metal component produced in this way13 May 2025US 12,296,374 B2Mg Meccanica Srl
- Method for manufacturing a monolithic aircraft door by die-cutting and machining11 Jun 2024US 12,006,065 B2Aubert & Duval
- Method and device for producing a hose nipple9 Apr 2024US 11,951,531 B2ContiTech Techno-Chemie GmbH
- Two-fire forming forging process for large crank throw8 Oct 2026US 2026/0307136 A1Zhongjuxin Ocean Engineering Equipment Co., Ltd
- Presswork-based thickness addition forming method and expandable member13 Aug 2026US 2026/0233292 A1Yorozu Corporation
- Method for integrally forming bicycle stem and handlebars5 Feb 2026US 2026/0034580 A1
- Closed die forged bop bonnet housing and method18 Dec 2025US 2025/0381593 A1Worldwide Oilfield Machine, Inc.
- Method and unit for manufacturing an elongate intermediate part by hot forging26 Jun 2025US 2025/0205772 A1Aubert & Duval
Most cited
By later US patents
- Press-molding apparatus, press-molding method, and press-molded product5US 10,220,427 B2Nippon Steel & Sumitomo Metal Corporation · 2019
- Free-form surface gear4US 9,091,338 B2O-Oka Corporation · 2015
- Aluminum alloys for applications such as wheels and methods of manufacture3US 10,646,914 B2Accuride Corporation · 2020
- Fluid end and method of manufacturing it3US 11,433,493 B2Bharat Forge Limited · 2022
- Precision forged cartridge case3US 9,016,184 B2The National Machinery Company · 2015