C04B 2103/22
Set retarders
C04B2103/22 (Set retarders) appears on 189 US grants and 192 published applications in this corpus.
Search patents in C04B- Granted patents
- 189
- Published applications
- 192
- Assignees
- 109
- Inventors
- 466
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 2 | 6 |
| 2007 | 4 | 2 |
| 2008 | 2 | 6 |
| 2009 | 2 | 2 |
| 2010 | 5 | 5 |
| 2011 | 3 | 6 |
| 2012 | 3 | 3 |
| 2013 | 3 | 7 |
| 2014 | 4 | 6 |
| 2015 | 2 | 0 |
| 2016 | 4 | 2 |
| 2017 | 8 | 24 |
| 2018 | 11 | 18 |
| 2019 | 8 | 18 |
| 2020 | 18 | 11 |
| 2021 | 14 | 14 |
| 2022 | 12 | 12 |
| 2023 | 11 | 15 |
| 2024 | 6 | 12 |
| 2025 | 9 | 12 |
| 2026 | 10 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dry cementitious material mixture for 3D-printing25 Aug 2026US 12,715,813 B2Holcim Technology Ltd
- Flexible composite25 Aug 2026US 12,716,020 B2Concrete Canvas Technology Ltd.
- Wide range retarder that improves early compressive strength development21 Jul 2026US 12,686,806 B2Halliburton Energy Services.Inc.
- Coated gypsum set stabilizing particles having a hydrophobic gypsum core, gypsum board including same, process for making the particles, and process for making the gypsum board9 Jun 2026US 12,649,692 B2Knauf Gips KG
- Plaster formula with increased porosity2 Jun 2026US 12,643,818 B2Knauf Gips KG
- Quick-setting magnesium based cement and concrete27 Aug 2026US 2026/0250191 A1ZS2 Technologies Ltd.
- High solids, sprayable setting type joint compound25 Jun 2026US 2026/0176205 A1Knauf Gips KG
- Inorganic nano-composite thermal insulation material and method of manufacture18 Jun 2026US 2026/0167565 A1Liatris, Inc.
- Wide range retarder that improves early compressive strength development30 Apr 2026US 2026/0117112 A1Halliburton Energy Services.Inc.
- Method of making a sprayable setting type compound11 Dec 2025US 2025/0376420 A1Knauf Gips KG
Most cited
By later US patents
- Set retarded cement compositions and methods for well cementing134US 5,049,288 AHalliburton Company · 1991
- Cementitious composition130US 4,494,990 AAsh Grove Cement Company · 1985
- Extended settable compositions comprising cement kiln dust and associated methods128US 7,478,675 B2Halliburton Energy Services.Inc. · 2009
- Extended settable compositions comprising cement kiln dust and associated methods89US 7,674,332 B2Halliburton Energy Services.Inc. · 2010
- Cement retarder and cement retardative sheet80US 5,932,344 ADaicel-Huels Ltd. · 1999