C01G 3/00
Compounds of copper
C01G3/00 (Compounds of copper) appears on 850 US grants and 648 published applications in this corpus.
Search patents in C01G- Granted patents
- 850
- Published applications
- 648
- Assignees
- 645
- Inventors
- 2,328
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 28 | 0 |
| 1978 | 21 | 0 |
| 1979 | 10 | 0 |
| 1980 | 17 | 0 |
| 1981 | 8 | 0 |
| 1982 | 12 | 0 |
| 1983 | 13 | 0 |
| 1984 | 10 | 0 |
| 1985 | 20 | 0 |
| 1986 | 15 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 17 | 0 |
| 1990 | 19 | 0 |
| 1991 | 31 | 0 |
| 1992 | 26 | 0 |
| 1993 | 25 | 0 |
| 1994 | 21 | 0 |
| 1995 | 10 | 0 |
| 1996 | 15 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 2 |
| 2002 | 8 | 9 |
| 2003 | 9 | 10 |
| 2004 | 9 | 8 |
| 2005 | 4 | 9 |
| 2006 | 7 | 19 |
| 2007 | 6 | 23 |
| 2008 | 4 | 23 |
| 2009 | 8 | 16 |
| 2010 | 20 | 34 |
| 2011 | 26 | 22 |
| 2012 | 19 | 28 |
| 2013 | 10 | 20 |
| 2014 | 10 | 21 |
| 2015 | 22 | 23 |
| 2016 | 18 | 32 |
| 2017 | 22 | 44 |
| 2018 | 24 | 39 |
| 2019 | 29 | 24 |
| 2020 | 37 | 45 |
| 2021 | 24 | 42 |
| 2022 | 16 | 27 |
| 2023 | 26 | 35 |
| 2024 | 33 | 38 |
| 2025 | 26 | 39 |
| 2026 | 21 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C01G 3/006Compounds containing copper, with or without oxygen or hydrogen, and containing two238
- C01G 3/02Oxides210
- C01G 3/003Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange171
- C01G 3/04Halides70
- C01G 3/12Sulfides66
- C01G 3/10Sulfates64
- C01G 3/08Nitrates9
- C01G 3/14Complexes with ammonia8
Recent patents
- High temperature superconducting material and a method for production6 Oct 2026US 12,753,085 B2True 2 Materials Pte Ltd.
- Purification process for the preparation of non-carrier added copper-6429 Sep 2026US 12,749,589 B2Curium US LLC
- Method for high-value application of PTA residue high-concentration bromine-containing wastewater to preparation of cuprous bromide22 Sep 2026US 12,741,881 B2Jiangsu University of Technology
- Copper-64 compositions and purification processes for the preparation of novel copper-64 compositions15 Sep 2026US 12,735,327 B2Curium US LLC
- Binder for an agglomeration process8 Sep 2026US 12,729,161 B2Mintek
- Purification process for the preparation of non-carrier added copper-6417 Sep 2026US 2026/0279612 A1Curium US LLC
- Purification process for the preparation of non-carrier added copper-6430 Jul 2026US 2026/0221304 A1Curium US LLC
- Ybco/barium titanate superconducting material2 Jul 2026US 2026/0184591 A1Imam Abdulrahman Bin Faisal University
- Method of converting copper cyanide to copper oxide and system thereof11 Jun 2026US 2026/0159409 A1Cyanco Corporation
- Method for reproducing valuable metal11 Jun 2026US 2026/0159410 A1Prime Planet Energy & Solutions, Inc.
Most cited
By later US patents
- Electroactive material for secondary batteries and methods of preparation146US 6,599,662 B1Massachusetts Institute of Technology · 2003
- Combustion of emulsions: A method and process for producing fine powders120US 5,984,997 ANanomaterials Research Corporation · 1999
- Method and apparatus for the production of metal oxide powder91US 5,207,973 AMartin Marietta Energy Systems, Inc. · 1993
- Process for making surfactant capped nanocrystals88US 6,440,213 B1The Regents of the University of California · 2002
- Production of metal oxide particles with nano-sized grains75US 6,752,979 B1Very Small Particle Company Pty Ltd · 2004