C23F 11/188
Containing phosphates
Official title: {containing phosphates}
C23F11/188 (Containing phosphates) appears on 70 US grants and 54 published applications in this corpus.
Search patents in C23F- Granted patents
- 70
- Published applications
- 54
- Assignees
- 53
- Inventors
- 164
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 3 | 2 |
| 2006 | 0 | 4 |
| 2007 | 0 | 1 |
| 2008 | 1 | 4 |
| 2009 | 2 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 1 |
| 2013 | 3 | 1 |
| 2014 | 0 | 5 |
| 2015 | 3 | 3 |
| 2016 | 2 | 3 |
| 2017 | 1 | 2 |
| 2018 | 4 | 0 |
| 2019 | 3 | 2 |
| 2020 | 0 | 6 |
| 2021 | 2 | 0 |
| 2022 | 4 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 4 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of inhibiting corrosion of a metal in an industrial water system21 Jul 2026US 12,686,929 B2Ecolab USA Inc.
- Anticorrosive composition28 Oct 2025US 12,454,488 B2Rockwool A/S
- Anticorrosive composition30 Sep 2025US 12,428,346 B2Rockwool A/S
- Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same22 Jul 2025US 12,365,989 B2Hamilton Sundstrand Corporation
- Solid coolant concentrates and production thereof31 Dec 2024US 12,180,413 B2BASF SE
- Method of Inhibiting Corrosion of a Metal in an Industrial Water System1 Oct 2026US 2026/0297758 A1Ecolab USA Inc.
- Anticorrosive composition29 Jan 2026US 2026/0028284 A1Rockwool A/S
- Antifreeze concentrate with corrosion protection and aqueous coolant composition produced therefrom13 Nov 2025US 2025/0346794 A1BASF SE
- Anticorrosive composition25 Sep 2025US 2025/0296881 A1Roickwool A/S
- Solid coolant concentrates and production thereof12 Dec 2024US 2024/0409801 A1BASF SE
Most cited
By later US patents
- Fire retardant compositions containing ammonium polyphosphate and iron additives for corrosion inhibition63US 6,802,994 B1Astaris LLC · 2004
- Corrosion inhibitor mixture for ammonium sulfate fire-retardant compositions and method for inhibiting corrosivity of such compositions53US 4,176,071 AEarly California Industries, Inc. · 1979
- Fire retardant compositions with reduced aluminum corrosivity43US 6,905,639 B2Astaris LLC · 2005
- Ammonium polyphosphate solutions containing multi-functional phosphonate corrosion inhibitors37US 6,846,437 B2Astaris LLC · 2005
- Non-carcinogenic corrosion inhibiting additive25US 6,537,678 B1United Technologies Corporation · 2003