C04B 35/18
Rich in aluminium oxide
Official title: rich in aluminium oxide
C04B35/18 (Rich in aluminium oxide) appears on 1,702 US grants and 1,668 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,702
- Published applications
- 1,668
- Assignees
- 735
- Inventors
- 3,599
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 10 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 15 | 0 |
| 1982 | 3 | 0 |
| 1983 | 12 | 0 |
| 1984 | 13 | 0 |
| 1985 | 13 | 0 |
| 1986 | 12 | 0 |
| 1987 | 14 | 0 |
| 1988 | 25 | 0 |
| 1989 | 31 | 0 |
| 1990 | 46 | 0 |
| 1991 | 38 | 0 |
| 1992 | 34 | 0 |
| 1993 | 37 | 0 |
| 1994 | 37 | 0 |
| 1995 | 23 | 0 |
| 1996 | 21 | 0 |
| 1997 | 22 | 0 |
| 1998 | 16 | 0 |
| 1999 | 29 | 0 |
| 2000 | 30 | 0 |
| 2001 | 39 | 5 |
| 2002 | 31 | 40 |
| 2003 | 23 | 47 |
| 2004 | 37 | 45 |
| 2005 | 24 | 52 |
| 2006 | 26 | 62 |
| 2007 | 26 | 76 |
| 2008 | 25 | 77 |
| 2009 | 41 | 129 |
| 2010 | 59 | 80 |
| 2011 | 70 | 88 |
| 2012 | 62 | 76 |
| 2013 | 59 | 64 |
| 2014 | 61 | 78 |
| 2015 | 71 | 63 |
| 2016 | 49 | 57 |
| 2017 | 46 | 60 |
| 2018 | 58 | 84 |
| 2019 | 58 | 73 |
| 2020 | 41 | 72 |
| 2021 | 52 | 82 |
| 2022 | 62 | 68 |
| 2023 | 52 | 55 |
| 2024 | 57 | 53 |
| 2025 | 41 | 49 |
| 2026 | 25 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Annealing separator composition for grain- oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet6 Oct 2026US 12,753,457 B2Posco
- High filtration efficiency particulate filters having bimodal pore size distribution made from beads with open porosity11 Aug 2026US 12,702,946 B2Corning Incorporated
- Cordierite-based ceramic(s) and member for a telescope4 Aug 2026US 12,698,239 B2KYOCERA Corporation
- Composition for additive manufacturing by binder jet printing and method for additive manufacturing by binder jet printing16 Jun 2026US 12,655,063 B2Porcelanas Da Costa Verde S.A.
- Cordierite-indialite-pseudobrookite structured ceramic bodies, batch composition mixtures, and methods of manufacturing ceramic bodies therefrom16 Jun 2026US 12,655,064 B2Corning Incorporated
- Ceramic particles for use in a solar power tower17 Sep 2026US 2026/0276244 A1Carbo Ceramics Inc.
- Colourable translucent white ceramic compound based on a frit comprising calcium and sodium27 Aug 2026US 2026/0250203 A1TheSize Surfaces, S.L.
- Composite panel core structure27 Aug 2026US 2026/0250208 A1General Electric Company
- Additive manufacturing powders with improved physical characteristics, method of manufacture and use thereof13 Aug 2026US 2026/0233302 A1Tekna Plasma Systems Inc.
- Method for Producing High Strength Ceramic Particles, and Method for Producing Micro-Porous Spherical Particles for Aerosol Generator using Benard Cell Phenomenon13 Aug 2026US 2026/0234062 A1EM-TECH Co., Ltd.
Most cited
By later US patents
- Ceramic materials resistant to halogen plasma and components using the same452US 6,447,937 B1KYOCERA Corporation · 2002
- Ceramic material resistant to halogen plasma and member utilizing the same392US 6,916,559 B2KYOCERA Corporation · 2005
- Carbon fibrils, method for producing same and compositions containing same361US 4,663,230 AHyperion Catalysis International, Inc. · 1987
- Electrostatic chuck having gas cavity and method244US 6,310,755 B1APPLIED Materials.Inc. · 2001
- Long persistent phosphors and persistent energy transfer technique225US 6,953,536 B2University of Georgia Research Foundation, Inc. · 2005