C04B 2235/407
Copper
C04B2235/407 (Copper) appears on 186 US grants and 218 published applications in this corpus.
Search patents in C04B- Granted patents
- 186
- Published applications
- 218
- Assignees
- 145
- Inventors
- 551
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 6 |
| 2003 | 6 | 17 |
| 2004 | 3 | 13 |
| 2005 | 10 | 11 |
| 2006 | 9 | 6 |
| 2007 | 7 | 8 |
| 2008 | 4 | 7 |
| 2009 | 3 | 8 |
| 2010 | 7 | 7 |
| 2011 | 4 | 8 |
| 2012 | 0 | 10 |
| 2013 | 4 | 7 |
| 2014 | 11 | 4 |
| 2015 | 5 | 8 |
| 2016 | 9 | 8 |
| 2017 | 2 | 16 |
| 2018 | 8 | 8 |
| 2019 | 10 | 13 |
| 2020 | 7 | 14 |
| 2021 | 7 | 7 |
| 2022 | 8 | 7 |
| 2023 | 6 | 5 |
| 2024 | 6 | 10 |
| 2025 | 8 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preparation method and use of high-entropy alloy (HEA)@carbon fiber composite nanomaterial28 Jul 2026US 12,692,198 B2Yangtze University
- Polycrystalline diamond and methods for fabricating the same14 Jul 2026US 12,680,395 B2US Synthetic Corporation
- Multilayer electronic component16 Jun 2026US 12,658,365 B2Samsung Electro-Mechanics Co., Ltd.
- Conductive paste18 Nov 2025US 12,476,047 B2Murata Manufacturing Co., Ltd.
- Spark plasma sintering methods for fabricating dense graphite21 Oct 2025US 12,448,292 B2Battelle Energy Alliance, LLC
- Metal-ceramic substrate and process for producing a metal-ceramic substrate20 Aug 2026US 2026/0242289 A1
- Low-temperature fired ceramic and electronic component21 May 2026US 2026/0138926 A1Murata Manufacturing Co., Ltd.
- Room-temperature and ambient-pressure superconducting ceramic and methods for producing the same30 Apr 2026US 2026/0120913 A1Quantum Energy Research Centre (Q-Centre)
- Conductive paste19 Feb 2026US 2026/0051439 A1Murata Manufacturing Co., Ltd.
- Highly dispersed, highly filled, low viscosity compositions, methods of making thereof, and uses thereof12 Feb 2026US 2026/0042253 A1Azul 3D, Inc.
Most cited
By later US patents
- Storage of hydrogen in layered nanostructures94US 5,653,951 ACatalytic Materials, LLC · 1997
- Methods of making composite ceramic articles having embedded filler71US 4,851,375 ALanxide Technology Company, LP · 1989
- Removal of contaminants from aqueous and gaseous streams using graphic filaments70US 5,458,784 ACatalytic Materials, LLC · 1995
- Method of manufacturing a diamond composite and a composite produced by same62US 6,447,852 B1Ambler Technologies, Inc. · 2002
- Graded refractory cermet article55US 4,743,511 AMinnesota Mining and Manufacturing Company · 1988