C04B 7/34
Hydraulic lime cements
Official title: Hydraulic lime cements; Roman cements {; natural cements}
C04B7/34 (Hydraulic lime cements) appears on 37 US grants and 62 published applications in this corpus.
Search patents in C04B- Granted patents
- 37
- Published applications
- 62
- Assignees
- 42
- Inventors
- 167
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 6 |
| 2015 | 2 | 3 |
| 2016 | 4 | 1 |
| 2017 | 1 | 0 |
| 2018 | 4 | 2 |
| 2019 | 0 | 3 |
| 2020 | 2 | 3 |
| 2021 | 1 | 3 |
| 2022 | 3 | 2 |
| 2023 | 5 | 11 |
| 2024 | 2 | 9 |
| 2025 | 4 | 12 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Asymmetrical laminate panel and method of manufacture2 Jun 2026US 12,643,307 B2CertainTeed Gypsum, Inc.
- Aerogel enhanced bio-based building material26 May 2026US 12,637,389 B2British Columbia Institute of Technology
- Compositions and methods relating to increased carbon dioxide uptake in mixing and curing of concrete5 May 2026US 12,617,717 B2Saudi Arabian Oil Company
- In-situ high-strength gradient carbonized material and preparation method thereof28 Apr 2026US 12,612,332 B2Wuhan University of Technology
- Vegetal concrete masonry unit and method and system for manufacture thereof27 Jan 2026US 12,534,403 B2Greenjams Buildtech Private Limited
- Strengthened calcium carbonate cementitious composition17 Sep 2026US 2026/0274746 A1Arelac, Inc.
- Mechanochemical synthesis of hydraulically reactive cements30 Jul 2026US 2026/0217602 A1Georgia Tech Research Corporation
- Producing cementitious materials from inert fillers with fine pozzolanic particle coatings2 Apr 2026US 2026/0092012 A1Wisconsin Alumni Research Foundation
- Lime-based cement extender compositions, and associated systems and methods19 Feb 2026US 2026/0049035 A1Graymont Western Canada Inc.
- Binder compositions for the building industry including pozzolanic material and high volume filler5 Feb 2026US 2026/0035301 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Concrete compositions and methods35US 9,061,940 B2Calera Corporation · 2015
- Particle packed cement-SCM blends26US 8,974,593 B2Roman Cement, LLC · 2015
- Particle packed cement-SCM blends23US 9,238,591 B2Roman Cement, LLC · 2016
- Two-part set-delayed cement compositions22US 9,255,031 B2Halliburton Energy Services.Inc. · 2016
- Cement set activators for set-delayed cement compositions and associated methods15US 9,227,872 B2Halliburton Energy Services.Inc. · 2016