B03C 1/015
By chemical treatment imparting magnetic properties to the material to be separated
Official title: by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
B03C1/015 (By chemical treatment imparting magnetic properties to the material to be separated) appears on 72 US grants and 81 published applications in this corpus.
Search patents in B03C- Granted patents
- 72
- Published applications
- 81
- Assignees
- 67
- Inventors
- 200
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 1 | 0 |
| 2007 | 2 | 6 |
| 2008 | 0 | 3 |
| 2009 | 1 | 6 |
| 2010 | 1 | 7 |
| 2011 | 3 | 10 |
| 2012 | 5 | 9 |
| 2013 | 9 | 1 |
| 2014 | 5 | 7 |
| 2015 | 5 | 2 |
| 2016 | 1 | 1 |
| 2017 | 4 | 4 |
| 2018 | 1 | 2 |
| 2019 | 2 | 4 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 4 |
| 2024 | 3 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the regeneration of the magnetic material used for the magnetic removal of microplastics from aqueous matrices20 Jan 2026US 12,528,089 B2Captoplastic, S.L.
- Magnetic removal or identification of damaged or compromised cells or cellular structures17 Jun 2025US 12,332,239 B2Inguran, LLC
- Method of separating nickel and cobalt from nickel and cobalt mixed powder31 Dec 2024US 12,179,215 B1Pukyong National University Industry-University Cooperation Foundation
- Chiral resolution method mimicking magnetic beneficiation and the magnetic nano-inhibitors for selective enrichment1 Oct 2024US 12,104,022 B2Peking University
- Methods for generating therapeutic delivery platforms6 Feb 2024US 11,891,668 B2Kansas State University Research Foundation
- Comprehensive utilization method for iron separation tailings from magnetizing-roasted red mud23 Apr 2026US 2026/0109644 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Water treatment system using a magnetic confinement method20 Nov 2025US 2025/0353769 A1The Hong Kong Polytechnic University
- Extraction of elements and/or compounds from iron-containing materials such as iron-containing tailings, recovery of magnetically susceptible materials, and related systems and products2 Oct 2025US 2025/0305075 A1Phoenix Tailings, Inc.
- Method for the regeneration of the magnetic material used for the magnetic removal of microplastics from aqueous matrices22 May 2025US 2025/0161955 A1Captoplastic, S.L.
- Method of separating nickel and cobalt from nickel and cobalt mixed powder12 Dec 2024US 2024/0408613 A1Pukyong National University Industry-University Cooperation Foundation
Most cited
By later US patents
- Carbon coated magnetic nanoparticles and their use in separation processes56US 8,801,936 B2ETH Zurich · 2014
- Partial oxidation process with magnetic separation of the ground slag52US 4,803,061 ATexaco Inc. · 1989
- Method of extracting heavy metals from industrial waste waters51US 3,931,007 ANippon Electric Co., Ltd. · 1976
- Methods for removing heavy metals from water using chemical precipitation and field separation methods45US 7,255,793 B22007
- Process for improving coal33US 3,938,966 AHazen Research, Inc. · 1976