C04B 24/30
Condensation polymers of aldehydes or ketones
C04B24/30 (Condensation polymers of aldehydes or ketones) appears on 69 US grants and 54 published applications in this corpus.
Search patents in C04B- Granted patents
- 69
- Published applications
- 54
- Assignees
- 44
- Inventors
- 211
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 2 | 3 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 5 | 4 |
| 2016 | 2 | 4 |
| 2017 | 2 | 6 |
| 2018 | 3 | 3 |
| 2019 | 6 | 7 |
| 2020 | 6 | 4 |
| 2021 | 4 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 3 | 8 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compositions and methods for well cementing17 Mar 2026US 12,577,449 B2Schlumberger Technology Corporation
- Charcoal products made with phenolic resin binder and methods for making thereof10 Mar 2026US 12,570,828 B2ProCarbon Bio AB
- Compositions and methods for well cementing10 Jun 2025US 12,325,822 B2Schlumberger Technology Corporation
- Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof20 May 2025US 12,305,116 B2Beijing Huamei Inc. CNPC
- High-adaptability viscosity-reducing polycarboxylic acid water reducer, preparation method therefor and use thereof16 Jul 2024US 12,037,287 B2Nanjing Bote New Materials Co., Ltd.
- Compositions and methods for well cementing23 Jul 2026US 2026/0209594 A1Schlumberger Technology Corporation
- Compositions and methods for well cementing2 Oct 2025US 2025/0304847 A1Schlumberger Technology Corporation
- Construction material compositions having high early and late strength24 Oct 2024US 2024/0351946 A1BASF SE
- Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof10 Oct 2024US 2024/0336828 A1Beijing Huamei Inc. CNPC
- Water-dispersible polymer powder compositions for cementing in subterranean formation, their manufacture and use12 Sep 2024US 2024/0301272 A1BASF SE
Most cited
By later US patents
- Methods of cementing in subterranean zones penetrated by well bores using biodegradable dispersants143US 6,681,856 B1Halliburton Energy Services.Inc. · 2004
- Dispersant for concrete mixtures of high salt content141US 4,818,288 ASKW Trostberg Aktiengesellschaft · 1989
- Deep mix soil stabilization method32US 6,076,997 AMBT Holding AG · 2000
- Cement set retarding additives, compositions and methods30US 5,355,955 AHalliburton Company · 1994
- 3D printing powder compositions and methods of use27US 9,388,078 B2The Regents of the University of California · 2016