C04B 2235/3229
Cerium oxides or oxide-forming salts thereof
C04B2235/3229 (Cerium oxides or oxide-forming salts thereof) appears on 1,348 US grants and 1,752 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,348
- Published applications
- 1,752
- Assignees
- 660
- Inventors
- 3,339
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 6 |
| 2002 | 9 | 16 |
| 2003 | 21 | 48 |
| 2004 | 27 | 67 |
| 2005 | 38 | 52 |
| 2006 | 32 | 62 |
| 2007 | 37 | 77 |
| 2008 | 29 | 86 |
| 2009 | 65 | 109 |
| 2010 | 51 | 108 |
| 2011 | 88 | 94 |
| 2012 | 74 | 118 |
| 2013 | 83 | 89 |
| 2014 | 78 | 73 |
| 2015 | 71 | 63 |
| 2016 | 60 | 66 |
| 2017 | 57 | 75 |
| 2018 | 71 | 73 |
| 2019 | 62 | 79 |
| 2020 | 47 | 60 |
| 2021 | 49 | 71 |
| 2022 | 60 | 65 |
| 2023 | 57 | 52 |
| 2024 | 40 | 64 |
| 2025 | 42 | 48 |
| 2026 | 24 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Long persistent phosphors and persistent energy transfer technique225US 6,953,536 B2University of Georgia Research Foundation, Inc. · 2005
- Luminescent ceramic for a light emitting device173US 7,361,938 B2Philips Lumileds Lighting Company, LLC · 2008
- Alumina-zirconia abrasive165US 4,457,767 ANorton Company · 1984
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- Al2O3-Y2O3-ZrO2/HfO2 materials, and methods of making and using the same131US 7,507,268 B23M Innovative Properties Company · 2009