C04B 2235/427
Diamond
C04B2235/427 (Diamond) appears on 371 US grants and 445 published applications in this corpus.
Search patents in C04B- Granted patents
- 371
- Published applications
- 445
- Assignees
- 145
- Inventors
- 622
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 5 |
| 2003 | 3 | 13 |
| 2004 | 7 | 7 |
| 2005 | 6 | 15 |
| 2006 | 3 | 14 |
| 2007 | 5 | 10 |
| 2008 | 4 | 10 |
| 2009 | 9 | 10 |
| 2010 | 7 | 22 |
| 2011 | 12 | 20 |
| 2012 | 9 | 20 |
| 2013 | 20 | 28 |
| 2014 | 26 | 26 |
| 2015 | 22 | 27 |
| 2016 | 26 | 28 |
| 2017 | 19 | 33 |
| 2018 | 29 | 27 |
| 2019 | 19 | 32 |
| 2020 | 21 | 19 |
| 2021 | 7 | 16 |
| 2022 | 13 | 10 |
| 2023 | 11 | 11 |
| 2024 | 11 | 17 |
| 2025 | 7 | 9 |
| 2026 | 8 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite polycrystal and tool with composite polycrystal28 Jul 2026US 12,692,200 B2Sumitomo Electric Hardmetal Corp.
- Polycrystalline diamond and methods for fabricating the same14 Jul 2026US 12,680,395 B2US Synthetic Corporation
- Particle enhancement of ceramic matrix composites, method of manufacture thereof and articles comprising the same2 Jun 2026US 12,643,829 B2Rtx Corporation
- Slurry composition and method of producing a ceramic matrix composite with reduced matrix defects2 Jun 2026US 12,643,830 B1Rolls-Royce High Temperature Composites Inc.
- Process for sintering high polycrystalline diamond monoliths with a HP-SPS-belt equipment19 May 2026US 12,630,431 B2Centre National De La Recherche Scientifique
- A cutting element and methods of making same24 Sep 2026US 2026/0286782 A1Element Six (UK) Limited
- Improved aluminum-containing nitride ceramic matrix composite, method of making, and method of use20 Aug 2026US 2026/0242660 A1SLT Technologies, Inc.
- Fabrication of ceramic matrix composites13 Aug 2026US 2026/0234069 A1Rtx Corporation
- A system for use in processing a plurality of bodies of polycrystalline diamond material30 Jul 2026US 2026/0216617 A1Element Six (UK) Limited
- Method of processing a body of polycrystalline diamond material30 Jul 2026US 2026/0217619 A1Element Six (UK) Limited
Most cited
By later US patents
- Composite abrasive compact having high thermal stability403US 5,127,923 AUS Synthetic Corporation · 1992
- Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength334US 6,601,662 B2Grant Prideco, L.P. · 2003
- Silicon carbide and silicon bonded polycrystalline diamond body and method of making it157US 4,151,686 AGeneral Electric Company · 1979
- Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements156US 7,635,035 B1US Synthetic Corporation · 2009
- Rotary drill bit design method149US 6,435,058 B1Camco International (UK) Limited · 2002