C22B 7/02
Working-up flue dust
C22B7/02 (Working-up flue dust) appears on 487 US grants and 299 published applications in this corpus.
Search patents in C22B- Granted patents
- 487
- Published applications
- 299
- Assignees
- 375
- Inventors
- 1,176
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 9 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 4 | 0 |
| 1986 | 11 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 11 | 0 |
| 1995 | 15 | 0 |
| 1996 | 24 | 0 |
| 1997 | 13 | 0 |
| 1998 | 16 | 0 |
| 1999 | 17 | 0 |
| 2000 | 14 | 0 |
| 2001 | 5 | 3 |
| 2002 | 22 | 5 |
| 2003 | 6 | 18 |
| 2004 | 11 | 15 |
| 2005 | 7 | 12 |
| 2006 | 6 | 8 |
| 2007 | 6 | 14 |
| 2008 | 6 | 13 |
| 2009 | 6 | 19 |
| 2010 | 16 | 19 |
| 2011 | 17 | 13 |
| 2012 | 10 | 12 |
| 2013 | 9 | 13 |
| 2014 | 10 | 6 |
| 2015 | 5 | 13 |
| 2016 | 10 | 14 |
| 2017 | 10 | 6 |
| 2018 | 7 | 8 |
| 2019 | 5 | 6 |
| 2020 | 3 | 9 |
| 2021 | 7 | 9 |
| 2022 | 7 | 12 |
| 2023 | 4 | 13 |
| 2024 | 12 | 18 |
| 2025 | 8 | 14 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for recovering metal zinc from solid metallurgical wastes19 May 2026US 12,630,900 B2Engitec Technologies S.P.A.
- Method of removing volatile constituents from an industrial dust, and valuable material-containing product12 May 2026US 12,624,417 B2MontanuniversitäT Leoben
- Iron containing pellets14 Apr 2026US 12,601,029 B2Binding Solutions Ltd
- Methods for selective recovery of rare earth elements and metals from coal ash by ionic liquids24 Mar 2026US 12,584,190 B2Georgia Tech Research Corporation
- Method for producing relating to industrial mass production of high-purity artificial zeolite13 Jan 2026US 12,522,507 B2
- Method for the Separation of Zinc and Iron from Electric Arc Furnace Baghouse Dust6 Aug 2026US 2026/0225092 A1American Renewable Metals LLC
- Zinc recovery method and zinc ferrite decomposition method6 Aug 2026US 2026/0226582 A1Kinotech Corporation
- Lithium recovery apparatus4 Jun 2026US 2026/0152868 A1Posco Holdings Inc.
- Process for selectively capturing chemical elements from a polymetallic sample26 Feb 2026US 2026/0055006 A1Centre National De La Recherche Scientifique
- Method for processing materials containing iron and zinc26 Feb 2026US 2026/0055480 A1Zincovery Process Technologies Limited
Most cited
By later US patents
- Method for treating organic waste116US 5,537,940 AMolten Metal Technology, Inc. · 1996
- Apparatus for dissociating bulk waste in a molten metal bath115US 5,555,822 AMolten Metal Technology, Inc. · 1996
- Free flowing dry back-up insulating material110US 7,083,758 B2Les Produits Industriels de Haute Temperature Pyrotek Inc. · 2006
- Method for the recovery of minerals and production of by-products from coal ash109US 4,652,433 AFlorida Progress Corporation · 1987
- System and process for removal of pollutants from a gas stream101US 6,610,263 B2EnviroScrub Technologies Corporation · 2003