C04B 7/02
Portland cement
C04B7/02 (Portland cement) appears on 265 US grants and 373 published applications in this corpus.
Search patents in C04B- Granted patents
- 265
- Published applications
- 373
- Assignees
- 203
- Inventors
- 872
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 7 |
| 2013 | 10 | 19 |
| 2014 | 4 | 16 |
| 2015 | 17 | 26 |
| 2016 | 10 | 13 |
| 2017 | 11 | 9 |
| 2018 | 8 | 24 |
| 2019 | 14 | 20 |
| 2020 | 16 | 23 |
| 2021 | 12 | 21 |
| 2022 | 15 | 36 |
| 2023 | 21 | 36 |
| 2024 | 32 | 49 |
| 2025 | 27 | 25 |
| 2026 | 21 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Accelerating portland cement and sand mixtures with dry calcium chloride6 Oct 2026US 12,753,117 B1J&P Invesco LLC
- Composition for insulating coating8 Sep 2026US 12,729,159 B2Saint-Gobain Isover
- Dry cementitious material mixture for 3D-printing25 Aug 2026US 12,715,813 B2Holcim Technology Ltd
- Compositions and methods for branched calcium lignosulfonate cement dispersants18 Aug 2026US 12,709,706 B2Saudi Arabian Oil Company
- Method for the refurbishment of porous construction materials28 Jul 2026US 12,692,194 B2Sika Technology AG
- Cementitous compositions for reducing efflorescence8 Oct 2026US 2026/0308051 A1Tremco Cpg Inc.
- Method for manufacturing composite cement10 Sep 2026US 2026/0265125 A1HSustainability GmbH
- Cement sack compositions and methods for making and using the same10 Sep 2026US 2026/0265143 A1Saudi Arabian Oil Company
- Method for forming cured mortar27 Aug 2026US 2026/0250189 A1Imam Abdulrahman Bin Faisal University
- Method of upgrading industrial furnace by-product27 Aug 2026US 2026/0250196 A1Magsort Oy
Most cited
By later US patents
- Reduced-carbon footprint concrete compositions122US 7,815,880 B2Calera Corporation · 2010
- Reduced-carbon footprint concrete compositions71US 8,470,275 B2Calera Corporation · 2013
- Early high-strength portland cement and method of manufacture53US 4,160,674 ALone Star Industries, Inc. · 1979
- Process for producing cement from a flue gas desulfurization process waste product51US 5,766,339 ADravo Lime Company · 1998
- Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations48US 8,403,045 B2Halliburton Energy Services.Inc. · 2013