B24B 3/18
Sharpening cutting edges: of taps or reamers
Official title: of taps or reamers
B24B3/18 (Sharpening cutting edges: of taps or reamers) appears on 20 US grants and 9 published applications in this corpus.
Search patents in B24B- Granted patents
- 20
- Published applications
- 9
- Assignees
- 11
- Inventors
- 26
- Latest grant
- 8 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Spiral flute tap with continuously increasing helix angle8 Sep 2020US 10,766,083 B2Kennametal Inc.
- Reaming element, reaming tool and method for the production thereof20 Nov 2018US 10,131,008 B2Komet Group GmbH
- Method of making a cutting tap with a correction grind12 Dec 2017US 9,839,984 B2Kennametal Inc.
- Form tap and method of making such10 Dec 2013US 8,602,841 B2
- Method for relief-grinding the cutting teeth of taps, thread formers, and similar tools16 Apr 2013US 8,419,504 B2Erwin Junker Maschinenfabrik GmbH
- Thread cutting tap and method for treatment of a thread cutting tap6 Mar 2025US 2025/0073795 A1AB Sandvik Coromant
- Apparatus and method for cutting edge preparation29 Sep 2022US 2022/0305605 A1Technische UniversitäT Dortmund
- Spiral flute tap with continuously increasing helix angle6 Dec 2018US 2018/0345394 A1Kennametal Inc.
- Reaming element, reaming tool and method for the production thereof15 Sep 2016US 2016/0263685 A1Komet Group GmbH
- Method of Making A Cutting Tap with A Correction Grind18 Feb 2016US 2016/0045995 A1Kennametal Inc.
Most cited
By later US patents
- Machine for backing-off and/or grinding drifting spindles provided with teeth10US 4,524,544 A1985
- Method for producing threaded sections of threading tools9US 4,548,000 A1985
- Method of manufacturing a thread cutting tool with wear resistant teeth7US 5,129,188 AGeneral Motors Corporation · 1992
- Method of shaping workpieces especially forming undercut archimedean spirals6US 4,813,188 ABuderus Aktiengesellschaft · 1989
- Blasting machine5US 4,121,387 ABadische Maschinenfabrik GmbH · 1978