C04B 2103/302
Water reducers
Official title: {Water reducers}
C04B2103/302 (Water reducers) appears on 161 US grants and 224 published applications in this corpus.
Search patents in C04B- Granted patents
- 161
- Published applications
- 224
- Assignees
- 161
- Inventors
- 800
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 5 |
| 2006 | 1 | 2 |
| 2007 | 1 | 6 |
| 2008 | 6 | 6 |
| 2009 | 1 | 3 |
| 2010 | 6 | 4 |
| 2011 | 2 | 5 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 4 |
| 2016 | 1 | 5 |
| 2017 | 3 | 9 |
| 2018 | 9 | 11 |
| 2019 | 8 | 20 |
| 2020 | 14 | 13 |
| 2021 | 8 | 13 |
| 2022 | 13 | 19 |
| 2023 | 8 | 18 |
| 2024 | 17 | 25 |
| 2025 | 10 | 21 |
| 2026 | 13 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process of making sulfonated lignin-based compositions, sulfonated lignin-based compositions so-obtained and their use29 Sep 2026US 12,747,259 B2Rg Dispersants Ltd.
- Double-liquid grouting slurry, its technology and application for super large diameter underwater shield engineering under high water pressure condition22 Sep 2026US 12,741,910 B2China Railway 14th Bureau Group Corporation Limited
- Method for accelerating and fluidifying wet concretes or mortars compositions comprising an activating agent, a water reducing polymer, consisting in using performance additive including chaotropic ions and its use in low carbon alternative binder compositions25 Aug 2026US 12,715,814 B2Centre National de la Recherche Scientifique (CNRS)
- Use of a naphthalenesulfonic acid polycondensate as a plasticizer in a construction composition and construction composition4 Aug 2026US 12,698,235 B2Construction Research & Technology GmbH
- Binder composition comprising pozzolanic material and fine filler21 Jul 2026US 12,686,638 B2Centre National de la Recherche Scientifique (CNRS)
- Compositions and methods of making cementitious binders via carbonation24 Sep 2026US 2026/0285750 A1
- Quick-setting magnesium based cement and concrete27 Aug 2026US 2026/0250191 A1ZS2 Technologies Ltd.
- Autonomous system and method for the kinetic management and stabilization of fresh concrete properties30 Jul 2026US 2026/0217614 A1Sensolyzer Advanced Sensing Systems Ltd.
- Magnesium phosphate-based cement grouting material, preparation method therefor and use thereof25 Jun 2026US 2026/0176206 A1Wuhan University of Technology
- Polymer mortar with sustained absorption function of carbon dioxide and preparation method therefor18 Jun 2026US 2026/0167573 A1Henan Juyan Materials Technology Co., Ltd
Most cited
By later US patents
- Cementitious composition130US 4,494,990 AAsh Grove Cement Company · 1985
- Cement composition using the dispersant of (meth)acrylic esters, (metha)acrylic acids polymers71US 6,187,841 B1MBT Holding AG · 2001
- Process for the oxidation of di-, tri-, Oligo- and polysaccharides into polyhydroxycarboxylic acids, catalyst used and products thus obtained70US 4,985,553 ARoquette Freres · 1991
- Cementitious coatings and method68US 4,088,804 A1978
- Cement dispersant, method for production thereof, and cement composition using the dispersant67US 6,376,581 B1MBT Holding AG · 2002