C09K 23/44
Ether carboxylic acids
C09K23/44 (Ether carboxylic acids) appears on 21 US grants and 14 published applications in this corpus.
Search patents in C09K- Granted patents
- 21
- Published applications
- 14
- Assignees
- 23
- Inventors
- 85
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Citronellol alkoxylate surfactants20 Jan 2026US 12,528,991 B2P2 Science, Inc.
- Dispersions of polymeric oil additives7 May 2024US 11,976,248 B2Dorf Ketal Energy Services LLC
- Core-shell structured non-ionic nanoemulsion system and preparation and use thereof24 Aug 2021US 11,097,239 B2PetroChina Company Limited
- Use of an acrylic dispersing agent—associative thickener pair in an alkide paint for improving the retention of its gloss level11 Dec 2012US 8,329,809 B2Coatex
- Dispersant, paste composition including the dispersant, inorganic device using the paste composition, and display apparatus including the inorganic device16 Feb 2010US 7,662,317 B2Samsung Electronics Co., Ltd.
- Microbial glycolipids4 Jul 2024US 2024/0216248 A1Analyticon Discovery GmbH
- Liquid crosslinking agent and coating fluid of liquid crosslinking agent22 Jun 2023US 2023/0193072 A1Mitsubishi Chemical Corporation
- Powdered dispersant for hydraulic compositions and production method thereof23 Feb 2023US 2023/0055804 A1Kao Corporation
- Citronellol alkoxylate surfactants23 Feb 2023US 2023/0058226 A1P2 Science, Inc.
- Dispersions Of Polymeric Oil Additives10 Sep 2020US 2020/0283692 A1Clariant International Ltd.
Most cited
By later US patents
- Block or graft copolymers and their use as surfactants53US 4,203,877 AImperial Chemical Industries PLC · 1980
- Surface-active compounds based on modified castor oil fatty substances15US 5,420,315 AHoechst Aktiengesellschaft · 1995
- Carboxy ethers14US 5,282,987 AHuels Aktiengesellschaft · 1994
- Polyurethane foams modified with nonionic surfactants8US 5,688,989 AHenkel Kommanditgesellschaft auf Aktien · 1997
- Emulsion fuel oil additive8US 6,638,323 B22003