C09C 1/24
Oxides of iron
C09C1/24 (Oxides of iron) appears on 493 US grants and 448 published applications in this corpus.
Search patents in C09C- Granted patents
- 493
- Published applications
- 448
- Assignees
- 316
- Inventors
- 1,338
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 10 | 0 |
| 2000 | 22 | 0 |
| 2001 | 15 | 3 |
| 2002 | 10 | 14 |
| 2003 | 13 | 15 |
| 2004 | 16 | 15 |
| 2005 | 8 | 19 |
| 2006 | 8 | 19 |
| 2007 | 10 | 26 |
| 2008 | 14 | 16 |
| 2009 | 5 | 15 |
| 2010 | 11 | 38 |
| 2011 | 3 | 15 |
| 2012 | 13 | 22 |
| 2013 | 12 | 19 |
| 2014 | 15 | 25 |
| 2015 | 16 | 20 |
| 2016 | 16 | 14 |
| 2017 | 13 | 21 |
| 2018 | 10 | 25 |
| 2019 | 18 | 28 |
| 2020 | 17 | 16 |
| 2021 | 21 | 16 |
| 2022 | 16 | 15 |
| 2023 | 10 | 10 |
| 2024 | 5 | 12 |
| 2025 | 5 | 6 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and system for multicolor photonic pigments from magneticially assembled nanorod arrays29 Sep 2026US 12,748,324 B2The Regents of the University of California
- Mesoporous silica wrapped nanoparticle composite material, preparation method thereof, and use thereof18 Aug 2026US 12,709,548 B2Wuyi University
- Magnetically tunable plasmon coupling of nanoshells enabled by space-free confined growth28 Jul 2026US 12,692,398 B2The Regents of the University of California
- Method for the production of metal oxide pigment composite of controlled agglomerating properties and respective product3 Feb 2026US 12,540,246 B2Prodotti Gianni S.R.L.
- Polymer-ceramic core-shell particle powders, and processes for making and articles comprising such powders26 Aug 2025US 12,398,272 B2Shpp Global Technologies B.V.
- Infrared radiation-absorbing material fine particle dispersion liquid and infrared radiation-absorbing material fine particle dispersion body2 Jul 2026US 2026/0184887 A1Sumitomo Metal Mining Co., Ltd.
- Colorants with low levels of manganese oxide5 Feb 2026US 2026/0035567 A1BASF SE
- Security ink composition and machine-readable security feature derived therefrom22 Jan 2026US 2026/0022261 A1Sicpa Holding SA
- Pigment dispersion and ink composition22 Jan 2026US 2026/0022265 A1FUJIFILM Corporation
- Polymer-ceramic core-shell particle powders, and processes for making and articles comprising such powders13 Nov 2025US 2025/0346766 A1Shpp Global Technologies B.V.
Most cited
By later US patents
- High power ultrasonic reactor for sonochemical applications392US 7,157,058 B2Nano-Size Ltd. · 2007
- Electrophoretic particles and processes for the production thereof363US 6,822,782 B2E Ink Corporation · 2004
- Electrophoretic media and processes for the production thereof192US 7,230,750 B2E Ink Corporation · 2007
- Electrophoretic media and processes for the production thereof129US 7,375,875 B2E Ink Corporation · 2008
- Electrophoretic particles and processes for the production thereof121US 7,411,720 B2E Ink Corporation · 2008