C30B 25/22
Sandwich processes
C30B25/22 (Sandwich processes) appears on 32 US grants and 27 published applications in this corpus.
Search patents in C30B- Granted patents
- 32
- Published applications
- 27
- Assignees
- 29
- Inventors
- 119
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 3 |
| 2022 | 0 | 4 |
| 2023 | 0 | 2 |
| 2024 | 3 | 6 |
| 2025 | 3 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing large-scale two-dimensional single crystal stack having interlayer rotation angle28 Apr 2026US 12,612,712 B2Peking University
- Alpha gallium oxide thin-film structure having high conductivity obtained using selective area growth in HVPE growth manner and method for manufacturing the same25 Nov 2025US 12,480,222 B2Electronics and Telecommunications Research Institute
- Diamonds and hetero-epitaxial method of forming diamonds29 Jul 2025US 12,371,815 B2Advanced Diamond Holdings, LLC
- Graphene hybrids for biological and chemical sensing11 Mar 2025US 12,247,923 B2The Penn State Research Foundation
- Method of growing bulk single crystal diamond on a substrate in a prescribed gas environment at a prescribed temperature and pressure12 Nov 2024US 12,139,812 B2Advanced Diamond Holdings, LLC
- Manufacturing method for semiconductor device using epitaxy process and apparatus for the same4 Jun 2026US 2026/0152871 A1Viatron Technologies Inc.
- Epitaxial silicon and doped silicon germanium superlattice and methods for preparing the same12 Feb 2026US 2026/0043170 A1APPLIED Materials.Inc.
- Multi-layered epitaxial stack formed in a presence of a higher order silicon precursor8 Jan 2026US 2026/0009155 A1APPLIED Materials.Inc.
- Method for manufacturing nitride semiconductor light-emitting element, and nitride semiconductor light-emitting element5 Jun 2025US 2025/0183623 A1Meijo University
- Method of growing bulk single crystal diamond on a substrate in a prescribed gas environment at a prescribed temperature and pressure5 Dec 2024US 2024/0401231 A1Advanced Diamond Holdings, LLC
Most cited
By later US patents
- HcCdTe epitaxially grown on crystalline support39US 4,846,926 AFord Aerospace & Communications Corporation · 1989
- Method for epitaxial growth22US 5,769,942 ASemiconductor Process Laboratory Co., Ltd. · 1998
- Apparatus for producing high quality epitaxially grown semiconductors21US 4,699,084 AThe United States of America as represented by the Secretary of the Army · 1987
- Device for epitaxial growing of semiconductor periodic structures from gas phase20US 4,100,879 A1978
- Process for producing electronic grade aluminum nitride films utilizing the reduction of aluminum oxide17US 4,152,182 AInternational Business Machines Corporation · 1979