C04B 2235/3213
Strontium oxides or oxide-forming salts thereof
C04B2235/3213 (Strontium oxides or oxide-forming salts thereof) appears on 1,454 US grants and 1,746 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,454
- Published applications
- 1,746
- Assignees
- 597
- Inventors
- 3,266
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 13 | 8 |
| 2002 | 23 | 26 |
| 2003 | 35 | 80 |
| 2004 | 52 | 74 |
| 2005 | 39 | 68 |
| 2006 | 60 | 99 |
| 2007 | 53 | 89 |
| 2008 | 63 | 82 |
| 2009 | 72 | 99 |
| 2010 | 61 | 101 |
| 2011 | 68 | 86 |
| 2012 | 67 | 93 |
| 2013 | 68 | 84 |
| 2014 | 74 | 65 |
| 2015 | 59 | 71 |
| 2016 | 78 | 61 |
| 2017 | 62 | 66 |
| 2018 | 61 | 79 |
| 2019 | 61 | 77 |
| 2020 | 57 | 49 |
| 2021 | 49 | 62 |
| 2022 | 43 | 62 |
| 2023 | 54 | 57 |
| 2024 | 43 | 51 |
| 2025 | 49 | 30 |
| 2026 | 20 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength334US 6,601,662 B2Grant Prideco, L.P. · 2003
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