C04B 2237/403
Refractory metals
C04B2237/403 (Refractory metals) appears on 336 US grants and 238 published applications in this corpus.
Search patents in C04B- Granted patents
- 336
- Published applications
- 238
- Assignees
- 212
- Inventors
- 814
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 0 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 15 | 0 |
| 1990 | 11 | 0 |
| 1991 | 12 | 0 |
| 1992 | 15 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 10 | 4 |
| 2002 | 13 | 13 |
| 2003 | 15 | 21 |
| 2004 | 13 | 14 |
| 2005 | 11 | 15 |
| 2006 | 7 | 4 |
| 2007 | 4 | 6 |
| 2008 | 5 | 4 |
| 2009 | 4 | 13 |
| 2010 | 8 | 8 |
| 2011 | 4 | 5 |
| 2012 | 4 | 11 |
| 2013 | 3 | 9 |
| 2014 | 3 | 10 |
| 2015 | 12 | 12 |
| 2016 | 5 | 8 |
| 2017 | 9 | 13 |
| 2018 | 8 | 12 |
| 2019 | 8 | 8 |
| 2020 | 7 | 6 |
| 2021 | 6 | 7 |
| 2022 | 7 | 8 |
| 2023 | 7 | 11 |
| 2024 | 5 | 5 |
| 2025 | 6 | 5 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite material sintered body, joined assembly, semiconductor manufacturing apparatus member, and composite material sintered body manufacturing method21 Apr 2026US 12,606,494 B2NGK Insulators, Ltd.
- Corrosion-resistant components3 Mar 2026US 12,567,564 B2CoorsTek, Inc.
- Wafer placement table20 Jan 2026US 12,531,218 B2NGK Insulators, Ltd.
- Adapter element for connecting an electronics component to a heat sink element, system comprising an adapter element of this kind, and method for producing an adapter element of this kind20 Jan 2026US 12,531,390 B2Rogers Germany GmbH
- Susceptor and method of manufacturing the same23 Dec 2025US 12,506,025 B2Semes Co., Ltd.
- Method for producing a metal-ceramic substrate, and metal-ceramic substrate produced using such a method13 Aug 2026US 2026/0239541 A1
- Method for producing a pressure sensor6 Aug 2026US 2026/0227258 A1Endress + Hauser GmbH + Co. KG
- Miniature Implantable Device enclosure having an optically transparent window bound to a metal housing with a micro-scale diffusion bond18 Jun 2026US 2026/0166653 A1Greatbatch Ltd.
- Ceramic window assembly23 Apr 2026US 2026/0109652 A1Element Six Technologies Limited
- Metal-ceramic substrate with contact area29 Jan 2026US 2026/0033336 A1Heraeus Electronics GmbH & Co. KG
Most cited
By later US patents
- Functionally stepped, resistive ceramic163US 5,880,439 APhilip Morris Incorporated · 1999
- Thermally stable diamond abrasive compact body157US 4,940,180 A1990
- Methods for hermetically sealing ceramic to metallic surfaces and assemblies incorporating such seals130US 6,221,513 B1Pacific Coast Technologies, Inc. · 2001
- Living hard tissue replacement, its preparation127US 5,125,971 ATDK Corporation · 1992
- Laser brazing for ceramic-to-metal joining104US 5,407,119 AAmerican Research Corporation of Virginia · 1995