C04B 14/308
Iron oxide
Official title: {Iron oxide}
C04B14/308 (Iron oxide) appears on 71 US grants and 91 published applications in this corpus.
Search patents in C04B- Granted patents
- 71
- Published applications
- 91
- Assignees
- 53
- Inventors
- 208
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 4 |
| 2008 | 2 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 5 |
| 2016 | 2 | 4 |
| 2017 | 4 | 2 |
| 2018 | 2 | 3 |
| 2019 | 2 | 10 |
| 2020 | 7 | 12 |
| 2021 | 6 | 5 |
| 2022 | 8 | 9 |
| 2023 | 7 | 7 |
| 2024 | 5 | 2 |
| 2025 | 4 | 5 |
| 2026 | 2 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- 3D printable cementitious ink including electromagnetic pulse resistant binders22 Jul 2025US 12,365,623 B2ICON Technology, Inc.
- Composition for enhancing the thickening time of hematite-based fly ash geopolymers8 Apr 2025US 12,269,775 B1King Fahd University of Petroleum and Minerals
- Coloured fiber cement products and methods for the production thereof8 Apr 2025US 12,269,782 B2Etex Services NV
- Compositions and methods of making cementitious binders10 Sep 2026US 2026/0265133 A1
- Geopolymer cementing composition3 Sep 2026US 2026/0258293 A1King Fahd University of Petroleum and Minerals
- 3d printable cementitious ink including electromagnetic pulse resistant binders27 Aug 2026US 2026/0250193 A1ICON Technology, Inc.
- Laminated composite wall panels and method of manufacture11 Jun 2026US 2026/0160063 A1Hydroblok, Inc.
- Composite wall panels having a polymer finish layer and method of manufacture28 May 2026US 2026/0146447 A1Hydroblok, Inc.
Most cited
By later US patents
- Process for producing iron oxide weighting material from iron chloride solutions18US 4,436,681 A1984
- Use of oil-wetting spacers in cementing against evaporites12US 4,124,075 AMobil Oil Corporation · 1978
- Iron oxide pigment suspensions and slurries12US 4,741,781 AMobay Corporation · 1988
- Synthetic pigment having the color of natural uncalcined umber and its use11US 5,085,706 ABayer Aktiengesellschaft · 1992
- High SRI cementitious systems for colored concrete9US 7,815,728 B2L. M. Scofield Company · 2010