C04B 24/281
Polyepoxides
Official title: {Polyepoxides}
C04B24/281 (Polyepoxides) appears on 57 US grants and 56 published applications in this corpus.
Search patents in C04B- Granted patents
- 57
- Published applications
- 56
- Assignees
- 42
- Inventors
- 170
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 6 |
| 2016 | 2 | 3 |
| 2017 | 3 | 4 |
| 2018 | 1 | 6 |
| 2019 | 6 | 4 |
| 2020 | 4 | 5 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 5 | 4 |
| 2024 | 4 | 7 |
| 2025 | 2 | 0 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thixotropic slurry with enhanced reliability for use in a wellbore8 Sep 2026US 12,729,335 B2Halliburton Energy Services.Inc.
- Methods of repairing casings using a red mud sealant composition25 Aug 2026US 12,715,811 B2Saudi Arabian Oil Company
- Thixotropic slurry with enhanced reliability for use in a wellbore21 Jul 2026US 12,686,805 B2Halliburton Energy Services.Inc.
- Cement mixtures for plugging honeycomb bodies and methods of making the same20 Jan 2026US 12,528,747 B2Corning Incorporated
- Well barriers for subterranean storage of carbon dioxide4 Nov 2025US 12,460,119 B2Halliburton Energy Services.Inc.
- Methods of repairing casings using a red mud sealant composition9 Jul 2026US 2026/0193133 A1Saudi Arabian Oil Company
- Methods of servicing a wellbore using a red mud sealant composition9 Jul 2026US 2026/0193518 A1Saudi Arabian Oil Company
- Methods of treating unconsolidated sand formations using a volcanic ash sealant composition9 Jul 2026US 2026/0193519 A1Saudi Arabian Oil Company
- Methods of reducing circulation loss in a wellbore using a red mud sealant composition9 Jul 2026US 2026/0193521 A1Saudi Arabian Oil Company
- Well Barriers For Subterranean Storage Of Carbon Dioxide5 Feb 2026US 2026/0035607 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Methods and compositions for cementing pipe strings in well bores103US 6,244,344 B1Halliburton Energy Services.Inc. · 2001
- Methods and compositions for cementing pipe strings in well bores81US 6,350,309 B2Halliburton Energy Services.Inc. · 2002
- Aqueous dispersion of epoxy resin and blend of epoxy resin-polyoxyalkylene amines78US 6,077,884 ASika Chemie GmbH · 2000
- Production of cement-mortar dry mix28US 5,322,562 ASandoz Ltd. · 1994
- Curing agent for aqueous epoxy resin dispersions, process for its preparation and its use27US 5,382,606 ASika AG, vorm. Kaspar Winkler & Co. · 1995