B24D 15/081
With sharpening elements in interengaging or in mutual contact
Official title: {with sharpening elements in interengaging or in mutual contact}
B24D15/081 (With sharpening elements in interengaging or in mutual contact) appears on 134 US grants and 115 published applications in this corpus.
Search patents in B24D- Granted patents
- 134
- Published applications
- 115
- Assignees
- 68
- Inventors
- 182
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 0 |
| 2003 | 2 | 6 |
| 2004 | 4 | 2 |
| 2005 | 2 | 2 |
| 2006 | 4 | 8 |
| 2007 | 4 | 4 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 3 |
| 2011 | 0 | 3 |
| 2012 | 2 | 2 |
| 2013 | 4 | 7 |
| 2014 | 2 | 5 |
| 2015 | 6 | 8 |
| 2016 | 4 | 4 |
| 2017 | 3 | 5 |
| 2018 | 4 | 3 |
| 2019 | 5 | 2 |
| 2020 | 5 | 8 |
| 2021 | 4 | 6 |
| 2022 | 8 | 7 |
| 2023 | 4 | 8 |
| 2024 | 5 | 5 |
| 2025 | 9 | 6 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tool clamping assembly and sharpener16 Dec 2025US 12,496,675 B1
- Sharpening sheath adapted to receive a knife, and combination of such a sheath and a knife16 Dec 2025US 12,496,687 B2Seb S. A.
- Sharpening sheath adapted to receive a knife, and combination of such a sheath and a knife14 Oct 2025US 12,440,938 B2Seb S. A.
- Knife sharpener and knife sharpening device7 Oct 2025US 12,434,352 B2
- Handheld blade steel30 Sep 2025US 12,427,616 B2Hantover, Inc.
- Knife sharpener2 Jul 2026US 2026/0183903 A1Yuyao Norton Electric Appliance Co., Ltd.
- Method for automatically controlling the triggering of the sharpening of the cutting edge of a cutting blade for a cutting machine25 Jun 2026US 2026/0175367 A1Amvalor
- Knife with integrated sharpener21 May 2026US 2026/0138258 A1
- Sharpening tool19 Feb 2026US 2026/0048465 A1
- Integrated cutting tool sharpening system15 Jan 2026US 2026/0014660 A1
Most cited
By later US patents
- Abrasive sharpener46US 8,221,199 B2Smith Abrasives, Inc. · 2012
- Hand-held dual knife sharpener43US 4,494,340 AFiskars Inc. · 1985
- Method and apparatus for knife and blade sharpening41US 5,582,535 AEdgecraft Corporation · 1996
- Edge sharpening apparatus39US 4,934,110 A1990
- Blade sharpener38US 6,039,642 A2000