C01B 32/26
Preparation
Official title: Preparation (by using ultra-high pressure B01J3/06; by crystal growth C30B29/04)
C01B32/26 (Preparation) appears on 266 US grants and 325 published applications in this corpus.
Search patents in C01B- Granted patents
- 266
- Published applications
- 325
- Assignees
- 175
- Inventors
- 616
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 3 | 5 |
| 2005 | 4 | 8 |
| 2006 | 3 | 9 |
| 2007 | 3 | 8 |
| 2008 | 0 | 4 |
| 2009 | 1 | 11 |
| 2010 | 7 | 11 |
| 2011 | 4 | 4 |
| 2012 | 3 | 8 |
| 2013 | 2 | 5 |
| 2014 | 9 | 16 |
| 2015 | 8 | 18 |
| 2016 | 8 | 14 |
| 2017 | 15 | 25 |
| 2018 | 13 | 20 |
| 2019 | 19 | 18 |
| 2020 | 21 | 20 |
| 2021 | 14 | 28 |
| 2022 | 16 | 19 |
| 2023 | 21 | 28 |
| 2024 | 14 | 24 |
| 2025 | 18 | 9 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Synthetic single crystal diamond and method for producing same8 Sep 2026US 12,729,456 B2Sumitomo Electric Industries, Ltd.
- Molecularly doped nanodiamond1 Sep 2026US 12,722,132 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Superhydrophobic surface in thermal infrared imaging device21 Jul 2026US 12,687,660 B2Teledyne FLIR Commercial Systems, Inc.
- NV-center-based microwave-free quantum sensor and uses and characteristics thereof16 Jun 2026US 12,656,281 B2Quantum Technologies, Inc.
- Method and device for producing layered nanocarbon structures19 May 2026US 12,630,430 B2Lion Alternative Energy PLC
- Microwave plasma cvd device27 Aug 2026US 2026/0253840 A1National Institute of Advanced Industrial Science and Technology
- A method for preparing diamond on the basis of graphite under normal pressure13 Aug 2026US 2026/0234006 A1Zhejiang University of Technology
- Synthetic single crystal diamond30 Jul 2026US 2026/0217540 A1Sumitomo Electric Industries, Ltd.
- Diamond high-pressure inclusion and preparation method thereof28 May 2026US 2026/0145948 A1Center for High Pressure Science and Technology Advanced Research
- Quantum-Grade Nanodiamonds and Related Methods2 Apr 2026US 2026/0091979 A1The Government of the United States of America, as represented by the Secretary of the Navy
Most cited
By later US patents
- Method for synthesizing diamond by using plasma99US 4,767,608 ANational Institute for Research in Inorganic Materials · 1988
- Ultrasharp diamond edges and points and method of making89US 4,084,942 A1978
- Combustion flame synthesis of nanophase materials88US 5,876,683 A1999
- Conversion of fullerenes to diamonds56US 5,462,776 A1995
- Vapor-phase method for synthesis of diamond55US 4,938,940 AShowa Denko K. K. · 1990