C04B 2237/064
Based on alumina or aluminates
Official title: based on alumina or aluminates
C04B2237/064 (Based on alumina or aluminates) appears on 263 US grants and 228 published applications in this corpus.
Search patents in C04B- Granted patents
- 263
- Published applications
- 228
- Assignees
- 175
- Inventors
- 615
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 3 |
| 2002 | 8 | 9 |
| 2003 | 8 | 9 |
| 2004 | 8 | 7 |
| 2005 | 4 | 10 |
| 2006 | 4 | 19 |
| 2007 | 5 | 10 |
| 2008 | 4 | 11 |
| 2009 | 4 | 17 |
| 2010 | 10 | 11 |
| 2011 | 8 | 10 |
| 2012 | 11 | 13 |
| 2013 | 11 | 8 |
| 2014 | 8 | 7 |
| 2015 | 12 | 12 |
| 2016 | 5 | 5 |
| 2017 | 8 | 9 |
| 2018 | 6 | 7 |
| 2019 | 5 | 7 |
| 2020 | 5 | 10 |
| 2021 | 4 | 5 |
| 2022 | 3 | 8 |
| 2023 | 9 | 8 |
| 2024 | 7 | 5 |
| 2025 | 8 | 6 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multilayer sintered ceramic body14 Jul 2026US 12,679,777 B2Heraeus Covantics North America LLC
- Corrosion-resistant components3 Mar 2026US 12,567,564 B2CoorsTek, Inc.
- Ceramic joined body, electrostatic chucking device, and method for producing ceramic joined body27 Jan 2026US 12,538,748 B2Sumitomo Osaka Cement Co., Ltd.
- Ceramic joined body, electrostatic chuck device, and method for producing ceramic joined body6 Jan 2026US 12,515,998 B2Sumitomo Osaka Cement Co., Ltd.
- Ceramic joined body, electrostatic chuck device, and method for producing ceramic joined body23 Sep 2025US 12,424,475 B2Sumitomo Osaka Cement Co., Ltd.
- Metal-ceramic substrate and process for producing a metal-ceramic substrate20 Aug 2026US 2026/0242289 A1
- Bonded body13 Aug 2026US 2026/0234066 A1NGK Corporation
- Ceramic joined body, electrostatic chuck device, and method for manufacturing ceramic joined body27 Nov 2025US 2025/0364229 A1Sumitomo Osaka Cement Co., Ltd.
- Ceramic matrix composite sandwich structure and method of manufacture24 Jul 2025US 2025/0236096 A1Spirit AeroSystems, Inc.
- Bonded body22 May 2025US 2025/0162950 A1NGK Insulators, Ltd.
Most cited
By later US patents
- Composite materials156US 4,055,451 A1977
- Direct liquid phase bonding of ceramics to metals64US 4,602,731 ABorg-Warner Corporation · 1986
- Corrosion-resistant bonding agents for bonding ceramic components which are exposed to plasmas50US 8,858,745 B2APPLIED Materials.Inc. · 2014
- Method of making a vacuum-tight seal between a ceramic and a metal part, sealed structure, and discharge lamp having the seal45US 5,552,670 APatent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH · 1996
- Filter and filter assembly44US 7,341,614 B2Ibiden Co., Ltd. · 2008