B24B 3/22
Relief cutting of taps or reamers
B24B3/22 (Relief cutting of taps or reamers) appears on 8 US grants and 2 published applications in this corpus.
Search patents in B24B- Granted patents
- 8
- Published applications
- 2
- Assignees
- 5
- Inventors
- 7
- Latest grant
- 12 Dec 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of making a cutting tap with a correction grind12 Dec 2017US 9,839,984 B2Kennametal Inc.
- Method for relief-grinding the cutting teeth of taps, thread formers, and similar tools16 Apr 2013US 8,419,504 B2Erwin Junker Maschinenfabrik GmbH
- Apparatus for grinding13 May 1986US 4,587,767 ABuderus Aktiengesellshaft
- Machine for backing-off and/or grinding drifting spindles provided with teeth25 Jun 1985US 4,524,544 A
- Machine for relief grinding tap threads16 Nov 1982US 4,358,911 AReishauer AG
Most cited
By later US patents
- Machine for backing-off and/or grinding drifting spindles provided with teeth10US 4,524,544 A1985
- Tool grind fixture4US 4,341,046 A1982
- Machine for relief grinding tap threads4US 4,358,911 AReishauer AG · 1982
- Screw thread tap grinding3US 3,994,099 ACoventry Gauge & Tool Company Limited · 1976
- Method of making a cutting tap with a correction grind3US 9,839,984 B2Kennametal Inc. · 2017