B23B 39/16
Drilling machines with a plurality of working-spindles
Official title: Drilling machines with a plurality of working-spindles; Drilling automatons
B23B39/16 (Drilling machines with a plurality of working-spindles) appears on 291 US grants and 146 published applications in this corpus.
Search patents in B23B- Granted patents
- 291
- Published applications
- 146
- Assignees
- 160
- Inventors
- 486
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 16 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 10 | 0 |
| 1993 | 15 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 1 |
| 2002 | 5 | 3 |
| 2003 | 7 | 6 |
| 2004 | 4 | 5 |
| 2005 | 3 | 4 |
| 2006 | 3 | 3 |
| 2007 | 4 | 5 |
| 2008 | 3 | 5 |
| 2009 | 2 | 6 |
| 2010 | 2 | 5 |
| 2011 | 5 | 1 |
| 2012 | 3 | 4 |
| 2013 | 0 | 5 |
| 2014 | 1 | 7 |
| 2015 | 4 | 8 |
| 2016 | 7 | 8 |
| 2017 | 5 | 8 |
| 2018 | 10 | 12 |
| 2019 | 12 | 11 |
| 2020 | 10 | 5 |
| 2021 | 4 | 14 |
| 2022 | 10 | 7 |
| 2023 | 7 | 8 |
| 2024 | 1 | 1 |
| 2025 | 2 | 4 |
| 2026 | 5 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23B 39/161With parallel work spindles162
- B23B 39/20Setting work or tool carrier along a circular index line43
- B23B 39/22With working-spindles in opposite headstocks30
- B23B 39/18Setting work or tool carrier along a straight index line14
- B23B 39/24Designed for program control10
- B23B 39/168With the work spindles being oblique to each other7
Recent patents
- Machining robot for chip removal machining11 Aug 2026US 12,703,082 B2
- Machine tool and method of operating the machine tool16 Jun 2026US 12,654,265 B2Etxe-Tar, S.A.
- Two-hole core drilling machine5 May 2026US 12,617,027 B2Egun Co., Ltd.
- Four-hole core drilling machine7 Apr 2026US 12,594,610 B2Egun Co., Ltd.
- Device for perforating secondary battery and system including the same27 Jan 2026US 12,533,718 B2SK On Co., Ltd.
- Machine tool and method of operating the machine tool13 Nov 2025US 2025/0345891 A1Etxe-Tar, S.A.
- Cutting tool for boring, machining apparatus for boring and method for boring26 Jun 2025US 2025/0205791 A1Haru Technique Laboratory Inc.
- Two-Hole Core Drilling Machine6 Mar 2025US 2025/0073953 A1Egun Co., Ltd.
- machining device equipped with guiding means and method for producing an orifice with such a device2 Jan 2025US 2025/0001508 A1Safran Nacelles
- Multi-Hole Core Drilling Machine29 Aug 2024US 2024/0286205 A1Egun Co., Ltd.
Most cited
By later US patents
- High throughput hole forming system with multiple spindles per station116US 6,174,271 B1Electro Scientific Industries, Inc. · 2001
- Tool track for use on aircraft68US 4,850,763 AThe Boeing Company · 1989
- Multi-task end effector for robotic machining center63US 4,955,119 AImta · 1990
- Method and apparatus for high speed, high precision drilling and machining59US 4,088,417 AAdvanced Controls, Inc. · 1978
- High speed precision drilling system56US 4,761,876 ADynamotion Corporation · 1988