C22B 30/06
Obtaining bismuth
C22B30/06 (Obtaining bismuth) appears on 28 US grants and 22 published applications in this corpus.
Search patents in C22B- Granted patents
- 28
- Published applications
- 22
- Assignees
- 34
- Inventors
- 126
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 3 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for treating tin smelting intermediate materials and method for treating same9 Dec 2025US 12,492,446 B2Kunming University of Science and Technology
- Method for removing arsenic from copper smelting soot and comprehensive recovery of valuable metals4 Feb 2025US 12,215,406 B1Shandong Humon Smelting Co., Ltd.
- Mechano-chemical de-mixing of metal alloys and mixed materials21 Jun 2022US 11,364,542 B2Iowa State University Research Foundation, Inc.
- Method for comprehensively processing noble lead20 Apr 2021US 10,982,299 B2Kunming Dingbang Technology Co., Ltd.
- Mechano-chemical de-mixing of metal alloys and mixed materials1 Sep 2020US 10,758,984 B2Iowa State University Research Foundation, Inc.
- Method for the Selective Recovery of Bismuth From Solid Impurity Streams Generated During the Primary Production of Copper8 Jan 2026US 2026/0009102 A1Consejo Superior De Investigaciones Cientificas (Csic)
- Bismuthene as versatile photocatalyst operating under variable conditions for photoredox c-h bond functionalization13 Nov 2025US 2025/0345777 A1Koc Universitesi
- Crosslinked structure, metal-trapping material including said crosslinked structure, method for recovering metal using said metal-trapping material, and method for manufacturing said crosslinked structure24 Apr 2025US 2025/0128236 A1Daicel Corporation
- Radionuclide generation30 Jan 2025US 2025/0034678 A1Katholieke Universiteit Leuven
- Recovery method for valuable metals in copper anode slime29 Aug 2024US 2024/0287644 A1Kunming University of Science and Technology
Most cited
By later US patents
- Process for radioisotope recovery and system for implementing same34US 7,157,061 B2Battelle Energy Alliance, LLC · 2007
- Bismuth generator method17US 5,749,042 ABattelle Memorial Institute · 1998
- Hydrometallurgical process for treating alloys and drosses to recover the metal components10US 6,117,209 AGNB Technologies, Inc. · 2000
- Process for the recovery of gold and/or silver and possibly bismuth contained in sulfuretted ores and/or sulfoarsenides9US 4,342,591 AMines et Produits Chimiques de Salsigne · 1982
- Method for selectively removing antimony and bismuth from sulphuric acid solutions8US 5,366,715 AThe University of British Columbia · 1994