C04B 2235/401
Alkaline earth metals
C04B2235/401 (Alkaline earth metals) appears on 173 US grants and 204 published applications in this corpus.
Search patents in C04B- Granted patents
- 173
- Published applications
- 204
- Assignees
- 140
- Inventors
- 512
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 5 |
| 2003 | 2 | 13 |
| 2004 | 0 | 12 |
| 2005 | 8 | 12 |
| 2006 | 5 | 10 |
| 2007 | 6 | 9 |
| 2008 | 7 | 8 |
| 2009 | 7 | 11 |
| 2010 | 7 | 12 |
| 2011 | 4 | 13 |
| 2012 | 10 | 12 |
| 2013 | 9 | 5 |
| 2014 | 13 | 5 |
| 2015 | 2 | 4 |
| 2016 | 4 | 5 |
| 2017 | 1 | 6 |
| 2018 | 6 | 4 |
| 2019 | 4 | 8 |
| 2020 | 5 | 9 |
| 2021 | 8 | 12 |
| 2022 | 5 | 5 |
| 2023 | 3 | 8 |
| 2024 | 5 | 7 |
| 2025 | 8 | 6 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Material systems for repair of thermal barrier coating and methods thereof26 May 2026US 12,637,947 B2General Electric Company
- Method for producing metal matrix composite and method for preparing preform12 May 2026US 12,623,976 B2Advanced Composite Corporation
- Methods and systems for measurement of nonthermal far infrared radiation28 Apr 2026US 12,613,140 B2
- Preparation device for magnesium oxide fiber and preparation method thereof27 Jan 2026US 12,534,816 B2Tangshan Weimei New Material Technology Co., Ltd.
- High emissivity far infrared ceramic module for therapeutic device20 Jan 2026US 12,527,971 B2
- Metal carbide-coated carbon material24 Sep 2026US 2026/0285774 A1Shin-Etsu Chemical Co., Ltd.
- Blue light-emitting material having a perovskite-like structure and improved photoluminescent quantum yield, and method of preparing same30 Jul 2026US 2026/0218044 A1Iucf-Hyu (Ind-Univ.Cooperation Foundation Hanyang University)
- Composite materials and filaments composed of the same for printing three dimensional articles16 Jul 2026US 2026/0201126 A1
- Method and system for measurement of nonthermal far-infrared radiation9 Oct 2025US 2025/0314531 A1
- Preparation method and use of high-entropy alloy (hea)@carbon fiber composite nanomaterial2 Oct 2025US 2025/0304503 A1Yangtze University
Most cited
By later US patents
- Composite abrasive compact having high thermal stability403US 5,127,923 AUS Synthetic Corporation · 1992
- Al2O3-Y2O3-ZrO2/HfO2 materials, and methods of making and using the same131US 7,507,268 B23M Innovative Properties Company · 2009
- Method of making amorphous materials and ceramics111US 7,168,267 B23M Innovative Properties Company · 2007
- Alumina-zirconia, and methods of making and using the same107US 7,101,819 B23M Innovative Properties Company · 2006
- Al2O3-rare earth oxide-ZrO2/HfO2 materials, and methods of making and using the same99US 7,563,293 B23M Innovative Properties Company · 2009