C04B 14/303
Alumina
Official title: {Alumina}
C04B14/303 (Alumina) appears on 97 US grants and 123 published applications in this corpus.
Search patents in C04B- Granted patents
- 97
- Published applications
- 123
- Assignees
- 83
- Inventors
- 271
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 2 |
| 2015 | 5 | 3 |
| 2016 | 1 | 4 |
| 2017 | 1 | 5 |
| 2018 | 4 | 4 |
| 2019 | 5 | 11 |
| 2020 | 8 | 16 |
| 2021 | 10 | 8 |
| 2022 | 11 | 15 |
| 2023 | 12 | 15 |
| 2024 | 9 | 10 |
| 2025 | 11 | 8 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cement mixtures for plugging honeycomb bodies and methods of making the same20 Jan 2026US 12,528,747 B2Corning Incorporated
- Ceramic cement mixture and ceramic honeycomb with ceramic cement skin13 Jan 2026US 12,522,545 B2Corning Incorporated
- Barrier for absorbing live fire ammunition and uses thereof30 Dec 2025US RE50,717 E1360° Ballistics, LLC
- Dry material mixture for a backfill, preferably a refractory concrete backfill, for producing a heavy-clay refractory non-basic product, refractory concrete backfill and such a product, method for producing same, lining, and industrial furnace, channel transport system or mobile transport vessel2 Dec 2025US 12,486,201 B2Refratechnik Holding GmbH
- Dispersion-based ready-to-use (RTU) technology with performance of a reactive resin25 Nov 2025US 12,479,764 B2Laticrete International, Inc.
- Intumescent sheet used in an electric vehicle battery for thermal runaway management3 Sep 2026US 2026/0260988 A1Aerogel R&D Pte. Ltd.
- Luminescent agglomerated stone material, manufacturing method and applications thereof27 Aug 2026US 2026/0250192 A1Hendrix Industries
- Composition for Artificial Marble and Artificial Marble Manufactured from Same16 Jul 2026US 2026/0200798 A1Lotte Chemical Corporation
- Dvc for a smelting furnace lining16 Jul 2026US 2026/0200800 A1
- Ceramic cement mixture and ceramic honeycomb with ceramic cement skin9 Apr 2026US 2026/0097997 A1Corning Incorporated
Most cited
By later US patents
- Cement compositions comprising sub-micron alumina and associated methods39US 8,476,203 B2Halliburton Energy Services.Inc. · 2013
- Chloride-free setting accelerator for hydraulic binding agents36US 4,507,154 ASika AG, vorm. Kaspar Winkler & Co. · 1985
- Additive for dewaterable slurry and slurry incorporating same31US 7,419,544 B2James Hardie International Finance B. V. · 2008
- Separators for electrochemical cells20US 8,883,354 B2Optodot Corporation · 2014
- Separators for electrochemical cells16US 9,871,239 B2Optodot Corporation · 2018