C04B 24/32
Polyethers
Official title: Polyethers, e.g. alkylphenol polyglycolether
C04B24/32 (Polyethers) appears on 225 US grants and 221 published applications in this corpus.
Search patents in C04B- Granted patents
- 225
- Published applications
- 221
- Assignees
- 137
- Inventors
- 762
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 2 |
| 2002 | 9 | 9 |
| 2003 | 11 | 13 |
| 2004 | 4 | 9 |
| 2005 | 11 | 2 |
| 2006 | 4 | 7 |
| 2007 | 3 | 4 |
| 2008 | 1 | 7 |
| 2009 | 3 | 1 |
| 2010 | 1 | 4 |
| 2011 | 1 | 5 |
| 2012 | 6 | 10 |
| 2013 | 6 | 6 |
| 2014 | 1 | 4 |
| 2015 | 9 | 7 |
| 2016 | 3 | 6 |
| 2017 | 8 | 15 |
| 2018 | 9 | 13 |
| 2019 | 11 | 13 |
| 2020 | 9 | 12 |
| 2021 | 5 | 16 |
| 2022 | 8 | 13 |
| 2023 | 3 | 5 |
| 2024 | 9 | 16 |
| 2025 | 9 | 11 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Deflocculation additives for wellbore servicing fluid additives15 Sep 2026US 12,735,620 B2Halliburton Energy Services.Inc.
- Use of graphene oxide/butyl acrylate/silane composite emulsion as anti-shrinkage agent2 Jun 2026US 12,643,821 B2Qingdao University of Technology
- Mineral fiber product28 Apr 2026US 12,612,782 B2Rockwool A/S
- Insulation products7 Apr 2026US 12,595,655 B2Rockwool A/S
- Acoustic products7 Apr 2026US 12,595,656 B2Rockwool A/S
- Stabilizing admixture for mineral binder compositions24 Sep 2026US 2026/0285758 A1Sika Technology AG
- Method for improving workability of inorganic binder composition, and inorganic binder composition24 Sep 2026US 2026/0285759 A1Sika Technology AG
- Mineral fiber product6 Aug 2026US 2026/0226734 A1Rockwool A/S
- Aqueous suspensions of calcium hydroxide nanoparticles with improved storage stability, their production and use2 Jul 2026US 2026/0184634 A1Sika Technology AG
- Concrete admixtures11 Jun 2026US 2026/0159448 A1Carboncure Technologies Inc.
Most cited
By later US patents
- Lightweight well cement compositions and methods181US 5,588,489 AHalliburton Company · 1996
- Drilling and cementing with blast furnace slag/polyalcohol fluid112US 5,361,841 AShell Oil Company · 1994
- Fluidity control of cementitious compositions101US 5,661,206 AMBT Holding AG · 1997
- Hydraulic cement mixes and processes for improving hydraulic cement mixes90US 4,401,472 AMartin Marietta Corporation · 1983
- Well cementing method using a dispersant and fluid loss intensifier86US 5,105,885 ABJ Services Company · 1992