C04B 2103/52
Grinding aids
Official title: Grinding aids; Additives added during grinding
C04B2103/52 (Grinding aids) appears on 91 US grants and 109 published applications in this corpus.
Search patents in C04B- Granted patents
- 91
- Published applications
- 109
- Assignees
- 50
- Inventors
- 270
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 4 |
| 2004 | 2 | 1 |
| 2005 | 4 | 6 |
| 2006 | 4 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 4 |
| 2009 | 0 | 5 |
| 2010 | 1 | 5 |
| 2011 | 6 | 6 |
| 2012 | 4 | 10 |
| 2013 | 6 | 5 |
| 2014 | 4 | 6 |
| 2015 | 8 | 11 |
| 2016 | 3 | 6 |
| 2017 | 2 | 3 |
| 2018 | 3 | 7 |
| 2019 | 7 | 1 |
| 2020 | 2 | 4 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 3 | 2 |
| 2024 | 1 | 10 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Grinding aid for cement and preparation method therefor24 Feb 2026US 12,559,433 B2Jiahua Science & Technology Development (Shanghai) Ltd.
- Reactive grinding aids and strength-enhancing agents for slag and other materials5 Aug 2025US 12,378,158 B1Verdment Brazil Ltda.
- Method for grinding a hydraulic binder10 Sep 2024US 12,084,389 B2Chryso
- Grinding stabilizing additive for vertical roller mills27 Jun 2023US 11,684,929 B2
- Additive for hydraulic binder useful to prevent the formation of rust-colored stains at the surface of hydraulic compositions24 Jan 2023US 11,560,337 B2Chryso
- Methods for the application in thick layer of cementitious comprising kinetic regulator30 Jul 2026US 2026/0217616 A1Sika Technology AG
- Degraded amine solution as performance enhancer27 Nov 2025US 2025/0361181 A1HSustainability GmbH
- Dry grinding of mineral materials, ground mineral materials, and their use in construction materials28 Nov 2024US 2024/0391831 A1Sika Technology AG
- Performance enhancer for composite cements14 Nov 2024US 2024/0376004 A1HConnect 2 GmbH
- Additive composition for strength enhancement of cementitious compositions14 Nov 2024US 2024/0376005 A1
Most cited
By later US patents
- Roll press grinding aid for granulated blast furnace slag78US 5,977,224 AW. R. Grace & Co.-Conn. · 1999
- High solids pumpable cement additives67US 6,800,129 B2W. R. Grace & Co.-Conn. · 2004
- Copolymers based on maleic acid derivatives and vinyl monomers, their production and application61US 5,369,198 AChemie Linz Gesellschaft m.b.H. · 1994
- Processing additives for blended cements30US 5,017,234 AW. R. Grace & Co.-Conn. · 1991
- Grinding aid composition and cement product27US 5,429,675 AW. R. Grace & Co.-Conn. · 1995