C22B 13/10
Separating metals from lead by crystallising
Official title: Separating metals from lead by crystallising, e.g. by Pattison process
C22B13/10 (Separating metals from lead by crystallising) appears on 8 US grants and 5 published applications in this corpus.
Search patents in C22B- Granted patents
- 8
- Published applications
- 5
- Assignees
- 9
- Inventors
- 26
- Latest grant
- 21 Oct 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of producing iron oxide pellets21 Oct 2008US 7,438,730 B2Kobe Steel, Ltd.
- Method of producing iron oxide pellets2 Nov 2004US 6,811,759 B2Kabushiki Kaisha Kobe Seiko Sho
- Method of producing iron oxide pellets17 Jun 2003US 6,579,505 B2Kabushiki Kaisha Kobe Seiko Sho
- Process for the treatment of electric arc furnace dust9 Aug 1994US 5,336,297 ATerra Gaia Environmental Group Inc.
- Process for the recovery of lead and silver chlorides3 Dec 1985US 4,556,422 AHazen Research, Inc.
- Method for fire refining of complex crude lead21 May 2026US 2026/0139341 A1Kunming University of Science and Technology
- Method of producing iron oxide pellets5 Oct 2006US 2006/0218753 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Method of producing iron oxide pellets11 Nov 2004US 2004/0221426 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Method of producing iron oxide pellets23 Oct 2003US 2003/0198779 A1Kabushiki Kaisha Kobe Seiko Sho
- Method of producing iron oxide pellets28 Nov 2002US 2002/0175441 A1Kabushiki Kaisha Kobe Seiko Sho
Most cited
By later US patents
- Process for the recovery of lead and silver chlorides14US 4,556,422 AHazen Research, Inc. · 1985
- Recovery of copper and zinc from complex chloride solutions12US 4,362,607 ACanadian Patents and Development Limited · 1982
- Process for the treatment of electric arc furnace dust12US 5,336,297 ATerra Gaia Environmental Group Inc. · 1994
- Method of producing iron oxide pellets9US 6,579,505 B2Kabushiki Kaisha Kobe Seiko Sho · 2003
- Method of producing iron oxide pellets9US 6,811,759 B2Kabushiki Kaisha Kobe Seiko Sho · 2004