C04B 2103/40
Surface-active agents, dispersants
C04B2103/40 (Surface-active agents, dispersants) appears on 492 US grants and 599 published applications in this corpus.
Search patents in C04B- Granted patents
- 492
- Published applications
- 599
- Assignees
- 264
- Inventors
- 1,401
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 4 |
| 2002 | 14 | 8 |
| 2003 | 6 | 15 |
| 2004 | 9 | 16 |
| 2005 | 20 | 7 |
| 2006 | 4 | 13 |
| 2007 | 7 | 15 |
| 2008 | 5 | 12 |
| 2009 | 3 | 6 |
| 2010 | 7 | 11 |
| 2011 | 6 | 16 |
| 2012 | 9 | 19 |
| 2013 | 13 | 14 |
| 2014 | 13 | 17 |
| 2015 | 14 | 17 |
| 2016 | 14 | 18 |
| 2017 | 21 | 36 |
| 2018 | 20 | 56 |
| 2019 | 28 | 47 |
| 2020 | 45 | 44 |
| 2021 | 37 | 29 |
| 2022 | 26 | 30 |
| 2023 | 22 | 37 |
| 2024 | 25 | 48 |
| 2025 | 24 | 29 |
| 2026 | 22 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Method for preparing grouting reinforcement filler for mining15 Sep 2026US 12,735,355 B2Ccri (Beijing) New Material Technology Co., Ltd.
- Deflocculation additives for wellbore servicing fluid additives15 Sep 2026US 12,735,620 B2Halliburton Energy Services.Inc.
- Foamed liquefiers in gypsum boards8 Sep 2026US 12,729,165 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
- Stabilizing admixture for mineral binder compositions24 Sep 2026US 2026/0285758 A1Sika Technology AG
Most cited
By later US patents
- Destructable fluorinated alkoxysilane surfactants and repellent coatings derived therefrom151US 5,274,159 AMinnesota Mining and Manufacturing Company · 1993
- Methods of cementing in subterranean zones penetrated by well bores using biodegradable dispersants143US 6,681,856 B1Halliburton Energy Services.Inc. · 2004
- Method and composition for stabilizing incompetent oil-containing formations126US 3,955,993 ATexaco Inc. · 1976
- High early-strength cementitious composition102US 6,858,074 B2Construction Research & Technology GmbH · 2005
- Surfactant blends for well operation92US 6,090,754 AAtlantic Richfield Company · 2000