C04B 2235/3882
Beta silicon nitrides
C04B2235/3882 (Beta silicon nitrides) appears on 43 US grants and 65 published applications in this corpus.
Search patents in C04B- Granted patents
- 43
- Published applications
- 65
- Assignees
- 57
- Inventors
- 168
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 4 |
| 2005 | 0 | 1 |
| 2006 | 2 | 4 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 4 |
| 2010 | 2 | 3 |
| 2011 | 3 | 1 |
| 2012 | 2 | 3 |
| 2013 | 3 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 3 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 2 |
| 2022 | 0 | 5 |
| 2023 | 0 | 7 |
| 2024 | 0 | 6 |
| 2025 | 3 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High temperature ceramic powder systems14 Jul 2026US 12,679,773 B2Arizona Board of Regents on Behalf of the University of Arizona
- Laminate for circuit board21 Apr 2026US 12,610,461 B2Tokuyama Corporation
- Silicon nitride powder for sintering17 Mar 2026US 12,577,107 B2Tokuyama Corporation
- Electrostatic chuck, electrostatic chuck heater comprising same, and semiconductor holding device10 Feb 2026US 12,545,630 B2Amosense Co., Ltd.
- Cubic boron nitride sintered material and cutting tool9 Sep 2025US 12,410,103 B2Sumitomo Electric Hardmetal Corp.
- Silicon nitride sintered body and wear-resistant member using same4 Jun 2026US 2026/0152442 A1Niterra Materials Co., Ltd.
- Silicon nitride-type sintered body, bearing rolling element, silicon nitride-type blank ball, and bearing12 Feb 2026US 2026/0042709 A1AGC Inc.
- Process for producing silicon nitride powder29 Jan 2026US 2026/0028226 A1Tokuyama Corporation
- Ceramic horology or jewellery component25 Dec 2025US 2025/0390064 A1Comadur SA
- Green sheet, method for manufacturing silicon nitride sintered body, and silicon nitride sintered body24 Jul 2025US 2025/0236562 A1Tokuyama Corporation
Most cited
By later US patents
- Process for the production of silicone carbide composite12US 4,453,951 AGeneral Electric Company · 1984
- Cutting tools and wear resistant articles and material for same11US 6,124,225 AThe Regents of the University of Michigan · 2000
- SiAlON containing ytterbium and method of making10US 7,049,256 B2Kennametal Inc. · 2006
- Method of making a SiAION ceramic10US 7,223,709 B2Kennametal Inc. · 2007
- SiAlON ceramic and method of making the same7US 7,309,673 B2Kennametal Inc. · 2007