C04B 7/421
Inorganic materials
Official title: {Inorganic materials}
C04B7/421 (Inorganic materials) appears on 44 US grants and 57 published applications in this corpus.
Search patents in C04B- Granted patents
- 44
- Published applications
- 57
- Assignees
- 50
- Inventors
- 187
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 2 | 3 |
| 2012 | 1 | 2 |
| 2013 | 1 | 4 |
| 2014 | 1 | 1 |
| 2015 | 3 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 3 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 3 | 6 |
| 2022 | 0 | 3 |
| 2023 | 1 | 4 |
| 2024 | 3 | 9 |
| 2025 | 3 | 8 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Production of activated-belite-CSA clinkers at extremely low firing temperature18 Aug 2026US 12,709,571 B2University of Kentucky Research Foundation
- Lime and hydraulic cement manufacture by electrolysis using hyaloclastite or lava, carbon mineralization by hyaloclastite or lava electrolysis and method of making and using same27 Jan 2026US 12,534,379 B2
- Method of producing sulfur concrete using carbonated salts13 Jan 2026US 12,522,540 B2United Arab Emirates University
- Composite mineralizers/fluxes for the production of alite/calcium sulfoaluminate clinkers23 Dec 2025US 12,503,393 B2University of Kentucky Research Foundation
- Lime and hydraulic cement manufacture using, hyaloclastite or lava, and method of making and using same6 May 2025US 12,291,488 B2
- Strengthened calcium carbonate cementitious composition17 Sep 2026US 2026/0274746 A1Arelac, Inc.
- Comprehensive utilization method for iron separation tailings from magnetizing-roasted red mud23 Apr 2026US 2026/0109644 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Hydrated sodium silicate aluminate as a binder agent for inorganic substrates22 Jan 2026US 2026/0022063 A1PQ Corporation
- Lime and hydraulic cement manufacture by electrolysis using hyaloclastite or lava, carbon mineralization by hyaloclastite or lava electrolysis and method of making and using same13 Nov 2025US 2025/0346494 A1Greencraft LLC
- Method of producing sulfur concrete using carbonated salts16 Oct 2025US 2025/0320161 A1United Arab Emirates University
Most cited
By later US patents
- Cement and concrete compositions for controlling alkali-silica reaction in concrete79US 6,022,408 AFMC Corporation · 2000
- Concrete compositions and methods35US 9,061,940 B2Calera Corporation · 2015
- Calcination of calcium carbonate and blend therefor23US 4,828,620 ASouthwest Research Institute · 1989
- Modified flux composition for cement23US 5,183,506 A1993
- Method for manufacturing cement using a raw material mix including finely ground steel slag23US 6,491,751 B1Texas Industries, Inc. · 2002