B23B 41/02
Boring or drilling machines or devices specially adapted for particular work: for
Official title: for boring deep holes; Trepanning, e.g. of gun or rifle barrels
B23B41/02 (Boring or drilling machines or devices specially adapted for particular work: for) appears on 63 US grants and 65 published applications in this corpus.
Search patents in B23B- Granted patents
- 63
- Published applications
- 65
- Assignees
- 61
- Inventors
- 157
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 4 |
| 2008 | 1 | 3 |
| 2009 | 1 | 4 |
| 2010 | 3 | 0 |
| 2011 | 0 | 6 |
| 2012 | 1 | 2 |
| 2013 | 2 | 3 |
| 2014 | 3 | 6 |
| 2015 | 1 | 2 |
| 2016 | 4 | 3 |
| 2017 | 6 | 5 |
| 2018 | 3 | 1 |
| 2019 | 3 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 3 |
| 2022 | 3 | 3 |
| 2023 | 2 | 4 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Active piezoelectric tool, active piezoelectric device and operating method of the active piezoelectric tool2 Jun 2026US 12,643,156 B2Nuovo Pignone Tecnologie Srl
- System and method for deep drilling into a pet panel and pet panel including a deep drilled hole26 Aug 2025US 12,397,358 B2MillerKnoll, Inc.
- Guide pad and gun drill having guide pad22 Jul 2025US 12,365,037 B2Tungaloy Corporation
- Drill head and method for chambering blind drill-holes22 Oct 2024US 12,121,979 B2botek Präzisionsbohrtechnik GmbH
- BTA drilling quick-stop device and method7 May 2024US 11,975,395 B2Shandong University
- Numerical control device27 Aug 2026US 2026/0252050 A1Fanuc Corporation
- Precision guide for a bowling ball drill bit6 Aug 2026US 2026/0225164 A1
- Tool for machining a workpiece, in particular deep-hole drill, tool system and method29 Jan 2026US 2026/0027630 A1Gutekunst GmbH
- Numerical control device22 May 2025US 2025/0164969 A1Fanuc Corporation
- Active piezoelectric tool, active piezoelectric device and operating method of the active piezoelectric tool25 Jan 2024US 2024/0024965 A1Nuovo Pignone Tecnologie Srl
Most cited
By later US patents
- Deep bore drilling apparatus with rotatable single tube system24US 5,544,985 AAutodie International · 1996
- Deep-bore drilling machine13US 4,726,717 ATBT Tiefbohrtechnik GmbH & Co. KG · 1988
- Smart machine tool system12US 6,947,800 B2PCC Specialty Products, Inc. · 2005
- System and method for forming a bore in a workpiece12US 9,272,337 B2Baker Hughes Incorporated · 2016
- Rotating tool10US 8,950,985 B2Seco Tools AB · 2015