C22B 11/048
From spent catalysts
Official title: {from spent catalysts}
C22B11/048 (From spent catalysts) appears on 109 US grants and 136 published applications in this corpus.
Search patents in C22B- Granted patents
- 109
- Published applications
- 136
- Assignees
- 115
- Inventors
- 387
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 7 |
| 2004 | 5 | 9 |
| 2005 | 3 | 2 |
| 2006 | 3 | 5 |
| 2007 | 6 | 4 |
| 2008 | 1 | 7 |
| 2009 | 5 | 15 |
| 2010 | 8 | 4 |
| 2011 | 3 | 3 |
| 2012 | 4 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 3 |
| 2015 | 3 | 1 |
| 2016 | 1 | 9 |
| 2017 | 4 | 3 |
| 2018 | 3 | 3 |
| 2019 | 9 | 7 |
| 2020 | 2 | 4 |
| 2021 | 0 | 4 |
| 2022 | 6 | 3 |
| 2023 | 3 | 6 |
| 2024 | 5 | 7 |
| 2025 | 4 | 13 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for recovering noble metals from catalytic converter15 Sep 2026US 12,735,768 B2National Ilan University
- Platinum-group metal recovery method, composition containing platinum-group metals, and ceramic material24 Feb 2026US 12,559,819 B2University of Fukui
- Method for catalyst recovery from catalyst-coated membranes17 Feb 2026US 12,553,107 B2Uop LLC
- Method of recovering iridium11 Nov 2025US 12,467,117 B2Syddansk Universitet
- Method for recovering precious metal from precious metal-containing waste catalyst14 Oct 2025US 12,442,058 B2Heraeus Precious Metal Technology (China) Co., Ltd.
- Process for recovering platinum-group metal from waste catalyst by using biocyanide and ionic liquid8 Oct 2026US 2026/0308713 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Pincer-type diphenyl sulfide compound, and preparation method and use thereof1 Oct 2026US 2026/0297025 A1Hunan Institute of Science and Technology
- Hydrometallurgical Process for Recovering Palladium from a Spent Catalyst24 Sep 2026US 2026/0286463 A1Peroxidos Do Brasil Ltda
- A method of refining and recycling iridium10 Sep 2026US 2026/0265079 A1Johnson Matthey Public Limited Company
- Recycling of catalyst coated membranes10 Sep 2026US 2026/0265860 A1
Most cited
By later US patents
- Recovery of precious metal and other values from spent compositions/materials36US 6,455,018 B1Rhone-Poulenc Chimie · 2002
- Recovery of precious metals25US 7,166,145 B1South Dakota School of Mines and Technology · 2007
- Process for recovery of palladium from spent catalyst23US 7,473,406 B2Council of Scientific and Industrial Research · 2009
- Method for the recovery of metals from the membrane of electrochemical cells21US 5,133,843 AThe Dow Chemical Company · 1992
- Process for recycling fuel cell components containing precious metals16US 7,713,502 B2Umicore AG & Co. KG · 2010