B23B 2251/56
Guiding pads
B23B2251/56 (Guiding pads) appears on 72 US grants and 59 published applications in this corpus.
Search patents in B23B- Granted patents
- 72
- Published applications
- 59
- Assignees
- 41
- Inventors
- 106
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 4 |
| 2006 | 1 | 2 |
| 2007 | 2 | 5 |
| 2008 | 2 | 0 |
| 2009 | 2 | 3 |
| 2010 | 1 | 6 |
| 2011 | 3 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 6 |
| 2014 | 3 | 2 |
| 2015 | 2 | 4 |
| 2016 | 3 | 4 |
| 2017 | 4 | 2 |
| 2018 | 3 | 4 |
| 2019 | 3 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 6 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cutting tool part having an additively manufactured cutting portion with integrally formed guide pads and method of manufacturing same19 May 2026US 12,629,757 B2Iscar, Ltd.
- Body for gun drill21 Apr 2026US 12,605,775 B2Tungaloy Corporation
- Guide pad and gun drill having guide pad22 Jul 2025US 12,365,037 B2Tungaloy Corporation
- Reusable guide plate and drilling tool with exchangeable guide plate12 Nov 2024US 12,138,695 B2botek Präzisionsbohrtechnik GmbH
- Deep-hole drill having a plurality of chip-forming devices and recesses in the rake face30 Apr 2024US 11,969,804 B2botek Präzisionsbohrtechnik GmbH
- Single-lip drill with interchangeable guide bars for small bore diameters15 Aug 2024US 2024/0269755 A1botek Praezisionsbohrtechnik GmbH
- Tool21 Dec 2023US 2023/0405691 A1Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Body for gun drill2 Nov 2023US 2023/0347423 A1Tungaloy Corporation
- Guide pad and gun drill having guide pad2 Nov 2023US 2023/0347424 A1Tungaloy Corporation
- Machining tool comprising a settable guide rail5 Oct 2023US 2023/0311218 A1Guehring KG
Most cited
By later US patents
- Drill bit or end mill with grooved flutes73US 5,160,232 AMCA Micro Crystal AG · 1992
- Drill41US 5,649,794 AMapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG · 1997
- Twist drills38US 6,132,149 ADormer Tools (Sheffield) Limited · 2000
- Drill containing minimum cutting material29US 4,160,616 A1979
- Support pad for long hole drill28US 7,207,750 B2Sandvik Intellectual Property AB · 2007