C23F 14/02
Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
Official title: by chemical means
C23F14/02 (Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes) appears on 217 US grants and 176 published applications in this corpus.
Search patents in C23F- Granted patents
- 217
- Published applications
- 176
- Assignees
- 125
- Inventors
- 527
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 3 |
| 2003 | 2 | 5 |
| 2004 | 5 | 5 |
| 2005 | 2 | 6 |
| 2006 | 2 | 9 |
| 2007 | 2 | 9 |
| 2008 | 6 | 8 |
| 2009 | 2 | 9 |
| 2010 | 9 | 9 |
| 2011 | 6 | 9 |
| 2012 | 7 | 6 |
| 2013 | 8 | 8 |
| 2014 | 9 | 7 |
| 2015 | 6 | 12 |
| 2016 | 8 | 8 |
| 2017 | 7 | 9 |
| 2018 | 6 | 12 |
| 2019 | 8 | 6 |
| 2020 | 6 | 9 |
| 2021 | 11 | 8 |
| 2022 | 4 | 4 |
| 2023 | 6 | 8 |
| 2024 | 3 | 4 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and compositions to reduce azoles and AOX corrosion inhibitors9 Jun 2026US 12,649,675 B2Bl Technologies, Inc.
- Method for reducing or preventing corrosion or fouling caused by acidic compounds21 Apr 2026US 12,606,916 B2Kurita Water Industries Ltd.
- Geothermal well stimulation and silca based deposit removal29 Jul 2025US 12,371,972 B2Solenis Technologies, L.P.
- Method for preventing the formation of white rust on a zinc-coated steel surface21 Jan 2025US 12,203,175 B2Suez Groupe
- Seal gas optimization systems and methods for a direct reduction process24 Sep 2024US 12,098,436 B2Midrex Technologies, Inc.
- Polyalkyl phosphonated polyol ether based scale inhibitors13 Aug 2026US 2026/0234464 A1ChampionX LLC
- Composition useful in sulfate scale removal6 Nov 2025US 2025/0340470 A1Dorf Ketal Chemicals Fze
- Metal corrosion protection treatment method for water system5 Dec 2024US 2024/0401207 A1Kurita Water Industries Ltd.
- Method and composition for treating dilution steam generator systems14 Nov 2024US 2024/0376607 A1
- Method for selecting chemical agents for removing scale22 Aug 2024US 2024/0279818 A1Fuji Electric Co., Ltd.
Most cited
By later US patents
- Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers144US 4,640,793 ACalgon Corporation · 1987
- Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers108US 4,936,987 ACalgon Corporation · 1990
- Corrosion inhibitors for aqueous systems93US 6,572,789 B1Ondeo Nalco Company · 2003
- Method of stabilizing aqueous systems90US 4,711,725 ARohm and Haas Company · 1987
- Scale inhibition and corrosion inhibition86US 3,965,027 ACalgon Corporation · 1976