B21B 2003/005
Copper or its alloys
Official title: {Copper or its alloys}
B21B2003/005 (Copper or its alloys) appears on 91 US grants and 61 published applications in this corpus.
Search patents in B21B- Granted patents
- 91
- Published applications
- 61
- Assignees
- 70
- Inventors
- 222
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 4 |
| 2003 | 1 | 4 |
| 2004 | 5 | 5 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 6 |
| 2010 | 2 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 3 |
| 2013 | 2 | 0 |
| 2014 | 0 | 4 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 3 |
| 2019 | 4 | 4 |
| 2020 | 4 | 4 |
| 2021 | 6 | 4 |
| 2022 | 0 | 1 |
| 2023 | 4 | 2 |
| 2024 | 2 | 0 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Copper-aluminum composite plate material prepared by aluminum liquid continuous casting and process thereof2 Dec 2025US 12,485,475 B2Guangzhou Zhongshan New Energy Technology Co., Ltd.
- Preparation method for ultrahigh-conductivity multilayer single-crystal laminated copper material, and copper material21 Jan 2025US 12,203,193 B2Peking University
- Rolled copper foil for lithium ion battery current collector, and lithium ion battery14 May 2024US 11,984,606 B2JX Metals Corporation
- Large-width cathode roller for producing high-strength ultra-thin copper foil6 Feb 2024US 11,890,658 B2Xi'an Taijin New Energy & Materials Sci-Tech Co., Ltd.
- Copper alloy strip having high heat resistance and thermal dissipation properties11 Jul 2023US 11,697,864 B2Poongsan Corporation
- Hot rolling equipment and hot rolling method17 Sep 2026US 2026/0273601 A1Nippon Steel Corporation
- Copper-aluminum composite plate material prepared by aluminum liquid continuous casting and process thereof23 Oct 2025US 2025/0326027 A1Guangzhou Zhongshan New Energy Technology Co., Ltd.
- Rolled material10 Jul 2025US 2025/0223670 A1Proterial, Ltd.
- Large-width Cathode Roller for Producing High-strength Ultra-thin Copper Foil15 Jun 2023US 2023/0182184 A1Xi'an Taijin Industrial Electrochemical Technology Co., Ltd.
- Preparation method for ultrahigh-conductivity multilayer single-crystal laminated copper material, and copper material16 Mar 2023US 2023/0080832 A1Peking University
Most cited
By later US patents
- Method for making a copper core five-ply composite for cookware71US 6,267,830 B1Clad Metals LLC · 2001
- Sheet rolling method18US 4,250,726 A1981
- Rolled copper foil for flexible printed circuit and method of manufacturing the same18US 6,197,433 B1Nippon Mining & Metals Co., Ltd. · 2001
- Rolling process for producing biaxially textured substrates17US 6,740,421 B1UT-Battelle, LLC · 2004
- Process and apparatus for improving cold rollability and/or strip annealability of metals and metal alloys16US 4,405,386 AOlin Corporation · 1983