C04B 2235/30
Constituents and secondary phases not being of a fibrous nature
C04B2235/30 (Constituents and secondary phases not being of a fibrous nature) appears on 11,819 US grants and 15,132 published applications in this corpus.
Search patents in C04B- Granted patents
- 11,819
- Published applications
- 15,132
- Assignees
- 3,829
- Inventors
- 24,261
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 14 | 0 |
| 1978 | 25 | 0 |
| 1979 | 14 | 0 |
| 1980 | 24 | 0 |
| 1981 | 28 | 0 |
| 1982 | 16 | 0 |
| 1983 | 17 | 0 |
| 1984 | 20 | 0 |
| 1985 | 23 | 0 |
| 1986 | 24 | 0 |
| 1987 | 22 | 0 |
| 1988 | 31 | 0 |
| 1989 | 43 | 0 |
| 1990 | 50 | 0 |
| 1991 | 69 | 0 |
| 1992 | 70 | 0 |
| 1993 | 70 | 0 |
| 1994 | 78 | 0 |
| 1995 | 59 | 0 |
| 1996 | 73 | 0 |
| 1997 | 78 | 0 |
| 1998 | 69 | 0 |
| 1999 | 91 | 0 |
| 2000 | 77 | 0 |
| 2001 | 95 | 33 |
| 2002 | 129 | 183 |
| 2003 | 207 | 446 |
| 2004 | 265 | 521 |
| 2005 | 232 | 503 |
| 2006 | 290 | 572 |
| 2007 | 299 | 533 |
| 2008 | 284 | 546 |
| 2009 | 330 | 705 |
| 2010 | 436 | 775 |
| 2011 | 466 | 684 |
| 2012 | 481 | 687 |
| 2013 | 536 | 665 |
| 2014 | 531 | 598 |
| 2015 | 531 | 618 |
| 2016 | 539 | 631 |
| 2017 | 547 | 691 |
| 2018 | 533 | 672 |
| 2019 | 542 | 718 |
| 2020 | 539 | 698 |
| 2021 | 497 | 711 |
| 2022 | 509 | 693 |
| 2023 | 539 | 698 |
| 2024 | 501 | 660 |
| 2025 | 501 | 503 |
| 2026 | 364 | 388 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereofIndexing code8,925
- C04B 2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metalIndexing code4,016
- C04B 2235/38Non-oxide ceramic constituents or additivesIndexing code2,874
- C04B 2235/44Metal salt constituents or additives chosen for the nature of the anionsIndexing code2,204
- C04B 2235/42Non metallic elements added as constituents or additivesIndexing code2,122
- C04B 2235/40Metallic constituents or additives not added as binding phaseIndexing code1,270
- C04B 2235/48Organic compounds becoming part of a ceramic after heat treatmentIndexing code1,120
- C04B 2235/36Glass starting materials for making ceramicsIndexing code693
All 9 subgroupsShow fewer
Recent patents
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- Method for preparing porous ceramic with uniform micro-nano pores8 Oct 2026US 2026/0308066 A1Central South University
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- Silver-containing zirconia sintered body, silver-containing stabilized zirconia powder, method for producing silver-containing stabilized zirconia powder, and method for producing silver-containing zirconia sintered body8 Oct 2026US 2026/0308069 A1Daiichi Kigenso Kagaku Kogyo Co., Ltd.
- Sintering additives for improved microstructure control8 Oct 2026US 2026/0308070 A1UT-Battelle, LLC
Most cited
By later US patents
- Method for manufacturing a porous ceramic scaffold having an organic/inorganic hybrid coating layer containing a bioactive factor777US 8,734,831 B2Snu R&Db Foundation · 2014
- Process for converting a metal carbide to carbon by etching in halogens566US 6,579,833 B1The Board of Trustees of the University of Illinois · 2003
- Composite abrasive compact having high thermal stability403US 5,127,923 AUS Synthetic Corporation · 1992
- 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