C09K 23/00
Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
C09K23/00 (Use of substances as emulsifying, wetting, dispersing, or foam-producing agents) appears on 2,561 US grants and 1,888 published applications in this corpus.
Search patents in C09K- Granted patents
- 2,561
- Published applications
- 1,888
- Assignees
- 1,117
- Inventors
- 5,908
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 48 | 0 |
| 1977 | 23 | 0 |
| 1978 | 39 | 0 |
| 1979 | 29 | 0 |
| 1980 | 31 | 0 |
| 1981 | 28 | 0 |
| 1982 | 41 | 0 |
| 1983 | 45 | 0 |
| 1984 | 66 | 0 |
| 1985 | 57 | 0 |
| 1986 | 38 | 0 |
| 1987 | 32 | 0 |
| 1988 | 33 | 0 |
| 1989 | 52 | 0 |
| 1990 | 61 | 0 |
| 1991 | 48 | 0 |
| 1992 | 57 | 0 |
| 1993 | 40 | 0 |
| 1994 | 44 | 0 |
| 1995 | 47 | 0 |
| 1996 | 58 | 0 |
| 1997 | 67 | 0 |
| 1998 | 86 | 0 |
| 1999 | 79 | 0 |
| 2000 | 78 | 0 |
| 2001 | 67 | 21 |
| 2002 | 62 | 58 |
| 2003 | 66 | 72 |
| 2004 | 48 | 98 |
| 2005 | 32 | 84 |
| 2006 | 32 | 44 |
| 2007 | 31 | 68 |
| 2008 | 28 | 64 |
| 2009 | 28 | 87 |
| 2010 | 53 | 93 |
| 2011 | 41 | 80 |
| 2012 | 54 | 51 |
| 2013 | 51 | 77 |
| 2014 | 60 | 76 |
| 2015 | 62 | 76 |
| 2016 | 66 | 96 |
| 2017 | 73 | 84 |
| 2018 | 71 | 85 |
| 2019 | 52 | 72 |
| 2020 | 69 | 79 |
| 2021 | 53 | 72 |
| 2022 | 40 | 88 |
| 2023 | 57 | 85 |
| 2024 | 55 | 78 |
| 2025 | 52 | 61 |
| 2026 | 31 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09K 23/017Mixtures of compounds716
- C09K 23/16Amines or polyamines504
- C09K 23/42Ethers391
- C09K 23/34Higher-molecular-weight carboxylic acid esters239
- C09K 23/14Derivatives of phosphoric acid238
- C09K 23/54Silicon compounds173
- C09K 23/22Amides or hydrazides155
- C09K 23/007Organic compounds containing halogen145
All 28 subgroupsShow fewer
- C09K 23/18Quaternary ammonium compounds145
- C09K 23/02Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols104
- C09K 23/12Sulfonates of aromatic or alkylated aromatic compounds91
- C09K 23/002Inorganic compounds87
- C09K 23/38Alcohols85
- C09K 23/56Glucosides59
- C09K 23/28Aminocarboxylic acids36
- C09K 23/30Proteins36
- C09K 23/52Natural or synthetic resins or their salts33
- C09K 23/003Organic compounds containing only carbon and hydrogen32
- C09K 23/04Sulfonates or sulfuric acid ester salts derived from polyhydric alcohols or amino29
- C09K 23/50Derivatives of lignin27
- C09K 23/08Sulfation or sulfonation products of fats, oils, waxes, or higher fatty acids26
- C09K 23/32Heterocyclic compounds20
- C09K 23/10Derivatives of low-molecular-weight sulfocarboxylic acids or sulfopolycarboxylic acids13
- C09K 23/26Sulfonamides10
- C09K 23/40Phenols8
- C09K 23/20Phosphonium and sulfonium compounds6
- C09K 23/06Esters of higher fatty acids with hydroxyalkylated sulfonic acids or salts thereof2
- C09K 23/005Organic compounds containing selenium or tellurium0
Recent patents
- Dispersions29 Sep 2026US 12,747,394 B2Lankem Ltd.
- Composition with mixed C13-C14 alcohols and surfactants22 Sep 2026US 12,742,120 B2Dow Global Technologies LLC
- Sulfonate composition22 Sep 2026US 12,742,121 B2Kao Corporation
- Mining collectors15 Sep 2026US 12,734,529 B1
- Composition comprising a comb copolymer1 Sep 2026US 12,723,152 B2BYK-Chemie GmbH
- Carbonate reaction products of alkyl glycosides and methods for use thereof24 Sep 2026US 2026/0286212 A1Saudi Arabian Oil Company
- Surfactants, surfactant compositions, and methods of using thereof24 Sep 2026US 2026/0286225 A1Chevron U.S.A.Inc.
- Cerium oxide nanoparticle, dispersion solution containing cerium oxide nanoparticle, oxidant, antivirus agent, and antibacterial agent3 Sep 2026US 2026/0256146 A1Toray Industries, Inc.
- Pha dispersion coating composition and coated fiber-based substrate27 Aug 2026US 2026/0250544 A1Stora Enso OYJ
- Emulsion Polymerized Emulsions from Polydimethyl Siloxane Mixture and Consequence of Cyclic Generation in Final Emulsion27 Aug 2026US 2026/0250577 A1
Most cited
By later US patents
- Emulsions and techniques for formation330US 7,776,927 B2President and Fellows of Harvard College · 2010
- Visco-elastic, isotropic materials based on water, fluorinate sufactants and fluorinated oils, process for their preparation, and their use in various fields, such as optics, pharmacology and electrodynamics274US 5,185,099 AInstitut National de Recherche Chimique Appliquee · 1993
- Fluorocarbon emulsion stabilizing surfactants248US 9,012,390 B2Raindance Technologies, Inc. · 2015
- Surfactant mixtures, stable gas-in-liquid emulsions, and methods for the production of such emulsions from said mixtures246US 4,684,479 A1987
- Viscoelastic surfactant fluids and related methods of use217US 6,258,859 B1Rhodia Inc. · 2001