B23B 2226/315
Polycrystalline [pcd]
Official title: polycrystalline [PCD]
B23B2226/315 (Polycrystalline [pcd]) appears on 239 US grants and 267 published applications in this corpus.
Search patents in B23B- Granted patents
- 239
- Published applications
- 267
- Assignees
- 125
- Inventors
- 501
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 12 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 5 |
| 2003 | 4 | 7 |
| 2004 | 5 | 8 |
| 2005 | 3 | 13 |
| 2006 | 5 | 9 |
| 2007 | 3 | 7 |
| 2008 | 9 | 9 |
| 2009 | 4 | 11 |
| 2010 | 7 | 14 |
| 2011 | 2 | 12 |
| 2012 | 4 | 12 |
| 2013 | 4 | 10 |
| 2014 | 9 | 14 |
| 2015 | 11 | 12 |
| 2016 | 8 | 11 |
| 2017 | 10 | 16 |
| 2018 | 10 | 11 |
| 2019 | 16 | 13 |
| 2020 | 9 | 16 |
| 2021 | 4 | 10 |
| 2022 | 8 | 20 |
| 2023 | 9 | 9 |
| 2024 | 11 | 12 |
| 2025 | 8 | 3 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diamond cutting tool28 Apr 2026US 12,611,719 B2Sumitomo Electric Hardmetal Corp.
- Cutting tool7 Apr 2026US 12,594,599 B2AB Sandvik Coromant
- Method for producing a cutting tool24 Feb 2026US 12,559,844 B2Rollomatic S.A.
- Boring tool and cutting insert3 Feb 2026US 12,539,544 B2Sumitomo Electric Hardmetal Corp.
- Insert, cutting tool, and method for cutting workpiece using the cutting tool28 Oct 2025US 12,454,011 B2KYOCERA Corporation
- Self-sharpening cutting device with gradually phased materials8 Oct 2026US 2026/0307157 A1
- Veined tool blank and drill20 Aug 2026US 2026/0241498 A1AB Sandvik Coromant
- Cutting insert, cutting tool, and method for manufacturing machined product26 Mar 2026US 2026/0084219 A1KYOCERA Corporation
- Cutting tool insert4 Dec 2025US 2025/0367734 A1AB Sandvik Coromant
- Polycrystalline diamond element including at least one leaching feature, cutting tool inserts and systems incorporating same, and related methods12 Jun 2025US 2025/0187081 A1US Synthetic Corporation
Most cited
By later US patents
- Superhard cutting element having reduced surface roughness and method of modifying288US 5,447,208 ABaker Hughes Incorporated · 1995
- Modified superhard cutting elements having reduced surface roughness method of modifying, drill bits equipped with such cutting elements, and methods of drilling therewith253US 5,653,300 ABaker Hughes Incorporated · 1997
- Polycrystalline diamond body with enhanced surface irregularities248US 4,629,373 AMegadiamond Industries, Inc. · 1986
- Low pressure bonding of PCD bodies and method for drill bits and the like244US 4,943,488 ANorton Company · 1990
- Low pressure bonding of PCD bodies and method236US 5,030,276 ANorton Company · 1991