C23F 11/167
Phosphorus-containing compounds
C23F11/167 (Phosphorus-containing compounds) appears on 266 US grants and 158 published applications in this corpus.
Search patents in C23F- Granted patents
- 266
- Published applications
- 158
- Assignees
- 164
- Inventors
- 562
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 16 | 0 |
| 1978 | 13 | 0 |
| 1979 | 9 | 0 |
| 1980 | 9 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 1 |
| 2003 | 4 | 4 |
| 2004 | 2 | 1 |
| 2005 | 2 | 6 |
| 2006 | 1 | 6 |
| 2007 | 2 | 4 |
| 2008 | 3 | 6 |
| 2009 | 2 | 9 |
| 2010 | 3 | 4 |
| 2011 | 6 | 3 |
| 2012 | 2 | 1 |
| 2013 | 4 | 5 |
| 2014 | 1 | 5 |
| 2015 | 4 | 3 |
| 2016 | 3 | 14 |
| 2017 | 4 | 11 |
| 2018 | 5 | 12 |
| 2019 | 14 | 9 |
| 2020 | 8 | 8 |
| 2021 | 8 | 13 |
| 2022 | 8 | 8 |
| 2023 | 12 | 8 |
| 2024 | 5 | 8 |
| 2025 | 4 | 4 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Continuous coil pretreatment process6 Oct 2026US 12,753,515 B2Arconic Technologies LLC
- Coolant with low electrical conductivity4 Aug 2026US 12,698,430 B2BASF SE
- Methods and compositions to reduce azoles and AOX corrosion inhibitors9 Jun 2026US 12,649,675 B2Bl Technologies, Inc.
- Corrosion control compositions and methods of mitigating corrosion24 Mar 2026US 12,584,227 B2Ecolab USA Inc.
- Method for applying a conversion coating with an aquous pickling composition comprising an aminophosphonic acid and a polymer24 Mar 2026US 12,584,229 B2Chemetall GmbH
- Continuous coil pretreatment process8 Oct 2026US 2026/0308766 A1Arconic Technologies LLC
- Method for preventing corrosion of metal component1 Oct 2026US 2026/0297757 A1Kurita Water Industries Ltd.
- Microcapsules for controlled release of actives agents, and use of said microcapsules in the oil and gas industry16 Jul 2026US 2026/0201243 A1Repsol, S. A.
- Corrosion inhibitor composition and method for inhibiting corrosion in geothermal well system30 Apr 2026US 2026/0117115 A1Chemtreat, Inc.
- Non-triazole imidazoline and amide compounds and methods for inhibiting corrosion in industrial water treatment28 Aug 2025US 2025/0270707 A1Chemtreat, Inc.
Most cited
By later US patents
- Corrosion inhibitors for aqueous systems93US 6,572,789 B1Ondeo Nalco Company · 2003
- Method of providing corrosion protection75US 5,853,797 ALucent Technologies Inc. · 1998
- 1-Hydroxy-3-amino-alkane-1,1-diphosphonic acids and salts68US 4,054,598 AHenkel & Cie G.m.b.H. · 1977
- Treatment of aqueous systems63US 4,046,707 ACiba Geigy (UK) Limited · 1977
- Fire-retardant compositions and their uses56US 10,550,483 B2Perimeter Solutions LP · 2020