C04B 41/5042
Zirconium oxides or zirconates
Official title: {Zirconium oxides or zirconates; Hafnium oxides or hafnates}
C04B41/5042 (Zirconium oxides or zirconates) appears on 141 US grants and 152 published applications in this corpus.
Search patents in C04B- Granted patents
- 141
- Published applications
- 152
- Assignees
- 101
- Inventors
- 356
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 3 |
| 2004 | 5 | 6 |
| 2005 | 3 | 8 |
| 2006 | 3 | 5 |
| 2007 | 3 | 2 |
| 2008 | 1 | 4 |
| 2009 | 5 | 5 |
| 2010 | 1 | 6 |
| 2011 | 1 | 3 |
| 2012 | 0 | 4 |
| 2013 | 2 | 3 |
| 2014 | 2 | 4 |
| 2015 | 4 | 7 |
| 2016 | 2 | 4 |
| 2017 | 4 | 5 |
| 2018 | 6 | 6 |
| 2019 | 3 | 18 |
| 2020 | 10 | 6 |
| 2021 | 5 | 17 |
| 2022 | 7 | 8 |
| 2023 | 8 | 7 |
| 2024 | 12 | 7 |
| 2025 | 6 | 6 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hafnon and zircon environmental barrier coatings for silicon-based components11 Aug 2026US 12,703,668 B2Rtx Corporation
- Electrostatic chuck, electrostatic chuck heater comprising same, and semiconductor holding device10 Feb 2026US 12,545,630 B2Amosense Co., Ltd.
- Shaped and fired zirconia refractory material16 Dec 2025US 12,497,338 B2P-D Refractories GmbH
- Article with surface structures for CMAS resistance2 Sep 2025US 12,404,218 B2ROLLS-ROYCE plc
- Microstructured fiber interface coatings for composites19 Aug 2025US 12,391,622 B2Rtx Corporation
- Method for fabricating an environmental barrier coating on a ceramic matrix composite13 Aug 2026US 2026/0234070 A1Rtx Corporation
- Mixed Stabilizer Thermal Barrier Coating6 Aug 2026US 2026/0225965 A1Rtx Corporation
- Multi-layer protective coating systems, methods of making, and articles of manufacture provided therewith4 Jun 2026US 2026/0152447 A1Purdue Research Foundation
- Multilayer environmental barrier coating23 Apr 2026US 2026/0109655 A1Rtx Corporation
- Ceramic coatings with sintering agents19 Mar 2026US 2026/0078066 A1Rtx Corporation
Most cited
By later US patents
- Process for producing fiber reinforced composite74US 5,876,659 AHitachi, Ltd. · 1999
- Coloring of ceramics by atmosphere control65US 7,497,983 B2Pentron Ceramics, Inc. · 2009
- Method of forming a crystalline ferroelectric dielectric material for an integrated circuit56US 5,728,603 ANorthern Telecom Limited · 1998
- Multilayer article having stabilized zirconia outer layer and chemical barrier layer54US 6,733,908 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2004
- Heat treated ceramic substrate having ceramic coating and heat treatment for coated ceramics53US 9,212,099 B2APPLIED Materials.Inc. · 2015