C22B 3/14
Containing ammonia or ammonium salts
Official title: containing ammonia or ammonium salts
C22B3/14 (Containing ammonia or ammonium salts) appears on 113 US grants and 103 published applications in this corpus.
Search patents in C22B- Granted patents
- 113
- Published applications
- 103
- Assignees
- 101
- Inventors
- 311
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 4 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 3 | 4 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 3 | 8 |
| 2015 | 3 | 7 |
| 2016 | 7 | 11 |
| 2017 | 1 | 6 |
| 2018 | 6 | 3 |
| 2019 | 8 | 6 |
| 2020 | 6 | 3 |
| 2021 | 2 | 4 |
| 2022 | 2 | 3 |
| 2023 | 3 | 9 |
| 2024 | 5 | 8 |
| 2025 | 1 | 6 |
| 2026 | 10 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Process for removal of silica from geothermal brine72US 4,016,075 ASouthern Pacific Land Co. · 1977
- Process for recovering molybdenum, vanadium, cobalt and nickel from roasted products of used catalysts from hydrotreatment desulfurization of petroleum48US 4,145,397 AFuji Fine Chemical Co. Ltd. · 1979
- Treatment of copper sulfide concentrates46US 5,176,802 A1993
- Recovery of alkali values from trona deposits38US 4,344,650 AFMC Corporation · 1982
- Enhanced leaching of minerals which form product layers34US 4,343,773 AUniversity of Utah Research Foundation · 1982