Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023416873-A1 · Dec 28, 2023 · US
from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22B11/046 |
| Official title | {from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths} |
| Display label | from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths |
| Total patents | 91 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 5 |
| 2021 | 10 |
| 2022 | 8 |
| 2023 | 15 |
| 2024 | 10 |
| 2025 | 13 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023374625-A1 · Nov 23, 2023 · US
Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023374626-A1 · Nov 23, 2023 · US
Ultrafast flash joule heating synthesis methods and systems for performing same
US-2023357885-A1 · Nov 9, 2023 · US
Cost-effective method for recovering precious metals in circuit board components
US-11753699-B2 · Sep 12, 2023 · US
Systems and methods for hydrometallurgical, anti-solvent, and electrochemical recovery of metals from wastes and ashes
US-2023220514-A1 · Jul 13, 2023 · US
Method for recycling hydrogen fuel cell of new energy vehicle
US-2023197976-A1 · Jun 22, 2023 · US
Cost-effective method for recovering precious metals in circuit board components
US-2023175096-A1 · Jun 8, 2023 · US
Method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board
US-11661639-B2 · May 30, 2023 · US
Chromatographic method for separating transition metals
US-2023046406-A1 · Feb 16, 2023 · US
Comprehensive recovery method of pyrolysis polymetallic product from waste integrated circuit board
US-11447846-B2 · Sep 20, 2022 · US
Method for enriching precious metals from printed circuit board incineration ash from molten pool by circulating chlorination
US-11447845-B2 · Sep 20, 2022 · US
Method for extracting and enriching gold with selenide
US-11434543-B2 · Sep 6, 2022 · US
Method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board
US-2022267879-A1 · Aug 25, 2022 · US
Simplified method of gold recovery from electronic waste
US-2022235433-A1 · Jul 28, 2022 · US
Simplified method of gold recovery from electronic waste
US-2022235434-A1 · Jul 28, 2022 · US
Using synthetic lixiviant biology for the recovery of precious and toxic metals from anthropogenic sources
US-2022205062-A1 · Jun 30, 2022 · US
Comprehensive Recovery Method Of Pyrolysis Polymetallic Product From Waste Integrated Circuit Board
US-2022205063-A1 · Jun 30, 2022 · US
A Method for Enriching Precious Metals from Printed Circuit Board Incineration Ash from Molten Pool by Circulating Chlorination
US-2021324496-A1 · Oct 21, 2021 · US
Method of recovering materials forming fuel cell stack
US-2021296658-A1 · Sep 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B11/046?
- CPC C22B11/046 is the Cooperative Patent Classification code for “from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths.”
- How many patents are filed under CPC C22B11/046 (from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths)?
- Our database includes 91 publications tagged with this CPC code.
- Is patent activity under CPC C22B11/046 growing?
- Publication counts under this code: 10 in 2024 vs 13 in 2025 (latest complete years).