C04B 2235/81
Materials characterised by the absence of phases other than the main phase
Official title: Materials characterised by the absence of phases other than the main phase, i.e. single phase materials
C04B2235/81 (Materials characterised by the absence of phases other than the main phase) appears on 225 US grants and 296 published applications in this corpus.
Search patents in C04B- Granted patents
- 225
- Published applications
- 296
- Assignees
- 190
- Inventors
- 721
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 3 |
| 2002 | 0 | 0 |
| 2003 | 4 | 5 |
| 2004 | 4 | 6 |
| 2005 | 3 | 3 |
| 2006 | 2 | 8 |
| 2007 | 4 | 8 |
| 2008 | 5 | 7 |
| 2009 | 6 | 9 |
| 2010 | 6 | 16 |
| 2011 | 8 | 24 |
| 2012 | 7 | 25 |
| 2013 | 14 | 17 |
| 2014 | 19 | 11 |
| 2015 | 12 | 19 |
| 2016 | 10 | 14 |
| 2017 | 9 | 21 |
| 2018 | 21 | 11 |
| 2019 | 12 | 12 |
| 2020 | 16 | 21 |
| 2021 | 11 | 16 |
| 2022 | 14 | 16 |
| 2023 | 11 | 7 |
| 2024 | 9 | 9 |
| 2025 | 5 | 3 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mixed garnet oxide scintillators and corresponding systems and methods9 Jun 2026US 12,650,526 B2Radiation Monitoring Devices, Inc.
- Preparation method of sub-micron powder of high-entropy nitride via nitride thermal reduction with soft mechano-chemical assistance7 Apr 2026US 12,595,213 B2North Minzu University
- Dental mill blank of a porous zirconia material containing oxides of Tb, Er and Cr, process of producing and use thereof24 Feb 2026US 12,558,203 B2Solventum Intellectual Properties Company
- Bilayer ceramic interconnect20 Jan 2026US 12,531,260 B2University of South Carolina
- Electrocaloric effect element11 Nov 2025US 12,467,664 B2Murata Manufacturing Co., Ltd.
- Dielectric composition, dielectric element, and laminated electronic component6 Aug 2026US 2026/0225959 A1Niterra Co., Ltd.
- Ceramic sintered body and plasma-generating electrode25 Jun 2026US 2026/0176208 A1Niterra Co., Ltd.
- Method of manufacturing piezoelectric ceramics, piezoelectric ceramics, piezoelectric element, ultrasonic motor, optical apparatus, dust removing device, image pickup apparatus, ultrasonic probe, ultrasonic diagnostic apparatus, and electronic apparatus4 Jun 2026US 2026/0157113 A1Canon Kabushiki Kaisha
- Bilayer ceramic interconnect28 May 2026US 2026/0149022 A1University of South Carolina
- Large-scale production of calcium lanthanum sulphide (cls) nanopowders15 Jan 2026US 2026/0015250 A1
Most cited
By later US patents
- Plasma-resistant ceramics with controlled electrical resistivity71US 8,367,227 B2APPLIED Materials.Inc. · 2013
- Alumina ceramic57US 4,285,732 AGeneral Electric Company · 1981
- Sputtering target, oxide semiconductor film and semiconductor device49US 8,333,913 B2Idemitsu Kosan Co., Ltd. · 2012
- Photoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same48US 6,197,218 B1Superior MicroPowders LLC · 2001
- Transparent polycrystalline garnets40US 5,484,750 AGeneral Electric Company · 1996