C04B 2103/408
Dispersants
Official title: {Dispersants}
C04B2103/408 (Dispersants) appears on 309 US grants and 377 published applications in this corpus.
Search patents in C04B- Granted patents
- 309
- Published applications
- 377
- Assignees
- 160
- Inventors
- 954
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 3 |
| 2002 | 11 | 6 |
| 2003 | 5 | 14 |
| 2004 | 7 | 15 |
| 2005 | 18 | 4 |
| 2006 | 3 | 10 |
| 2007 | 4 | 11 |
| 2008 | 3 | 10 |
| 2009 | 3 | 6 |
| 2010 | 7 | 11 |
| 2011 | 5 | 12 |
| 2012 | 8 | 12 |
| 2013 | 7 | 8 |
| 2014 | 9 | 12 |
| 2015 | 10 | 11 |
| 2016 | 8 | 18 |
| 2017 | 16 | 24 |
| 2018 | 13 | 22 |
| 2019 | 11 | 27 |
| 2020 | 21 | 21 |
| 2021 | 17 | 17 |
| 2022 | 14 | 19 |
| 2023 | 12 | 23 |
| 2024 | 18 | 28 |
| 2025 | 15 | 14 |
| 2026 | 11 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for the reduction of regioisomer where the double bond is shifted from ethylenically unsaturated alkoxylated alcohols6 Oct 2026US 12,753,262 B2Sika Technology AG
- Process of making sulfonated lignin-based compositions, sulfonated lignin-based compositions so-obtained and their use29 Sep 2026US 12,747,259 B2Rg Dispersants Ltd.
- Polymer having dispersing function, oil well cement dispersant, and preparation method therefor and use thereof25 Aug 2026US 12,715,812 B2China Petroleum & Chemical Corporation
- Compositions and methods for branched calcium lignosulfonate cement dispersants18 Aug 2026US 12,709,706 B2Saudi Arabian Oil Company
- High temperature sag resistant lightweight gypsum board30 Jun 2026US 12,668,538 B2Knauf Gips KG
- Hydraulic composition for ultra-high performance concrete and ultra-high performance grout8 Oct 2026US 2026/0308054 A1Sika Technology AG
- Method of Forming a Binder Composition and Products Formed Therefrom8 Oct 2026US 2026/0308062 A1A.M.N (Natanya) Engineering and Consulting, LTD
- Method of Forming a Stucco Composition and Products Formed Therefrom1 Oct 2026US 2026/0296964 A1A.M.N (Natanya) Engineering and Consulting, LTD
- Composition for adjusting of air pores in building products in the presence of sulfate-based superplasticizers1 Oct 2026US 2026/0296976 A1BASF SE
- Method for improving workability of inorganic binder composition, and inorganic binder composition24 Sep 2026US 2026/0285759 A1Sika Technology AG
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
- High early-strength cementitious composition102US 6,858,074 B2Construction Research & Technology GmbH · 2005
- Set retarded ultra fine cement compositions and methods78US 5,263,542 AHalliburton Company · 1993
- Oligomeric dispersant74US 6,133,347 AMBT Holding AG · 2000
- Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor71US 6,008,275 AMBT Holding AG · 1999