C22B 3/302
Ethers or epoxides
Official title: {Ethers or epoxides}
C22B3/302 (Ethers or epoxides) appears on 56 US grants and 27 published applications in this corpus.
Search patents in C22B- Granted patents
- 56
- Published applications
- 27
- Assignees
- 49
- Inventors
- 166
- Latest grant
- 16 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 2 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 2 | 1 |
| 2025 | 0 | 2 |
| 2026 | 0 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Use of synergistic mixture of extractants for extracting rare earth elements from an aqueous medium comprising phosphoric acid16 Jul 2024US 12,037,660 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Method for the recovery of palladium18 Jun 2024US 12,012,643 B2Universita' Degli Studi Di Cagliar
- Fluorinated crown ethers and methods and systems for extraction of lithium using same8 Mar 2022US 11,266,926 B2Cornell University
- Systems and methods for detecting metal ion concentrations in subjects31 Mar 2020US 10,605,799 B2The Regents of the University of California
- Method of recovering gold from dilute gold solution16 Dec 2014US 8,911,533 B2JX Nippon Mining & Metals Corporation
- Method and composition for liquid-liquid extraction17 Sep 2026US 2026/0275450 A1Molten Salt Solutions, LLC
- Functionalized resins for lithium capture20 Aug 2026US 2026/0242891 A1Board of Regents, The University of Texas System
- Liquid-liquid extraction system for electroactive metal electrodeposition from brine20 Aug 2026US 2026/0242970 A1Pure Lithium Corporation
- Method for short-process preparation of heteropoly acid from scheelite and its application in redox flow battery30 Jul 2026US 2026/0217553 A1Central South University
- Targeted extraction of rare earth elements, yttrium and radium from mineralogically characterized phosphogypsum26 Feb 2026US 2026/0055485 A1The Florida State University Research Foundation, Inc.
Most cited
By later US patents
- Supercritical fluid extraction80US 5,356,538 AIdaho Research Foundation, Inc. · 1994
- Methods and devices for the separation of radioactive rare earth metal isotopes from their alkaline earth metal precursors59US 5,225,173 AIdaho Research Foundation, Inc. · 1993
- Hydroxamic acid crown ethers58US 5,274,129 AIdaho Research Foundation, Inc. · 1993
- Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol50US 4,342,657 AMagna Corporation · 1982
- Method for breaking petroleum emulsions and the like comprising resinous polyalkylene oxide adducts42US 4,306,981 AMagna Corporation · 1981