B23B 39/22
With working-spindles in opposite headstocks
Official title: with working-spindles in opposite headstocks
B23B39/22 (With working-spindles in opposite headstocks) appears on 30 US grants and 25 published applications in this corpus.
Search patents in B23B- Granted patents
- 30
- Published applications
- 25
- Assignees
- 25
- Inventors
- 53
- Latest grant
- 19 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 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 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 3 | 3 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 3 | 0 |
| 2021 | 1 | 4 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Machining apparatus for differential case19 Sep 2023US 11,759,900 B2Haru Technique Laboratory Inc.
- Method for automated installation of semi-tubular fastener rivets27 Sep 2022US 11,453,044 B2The Boeing Company
- Double-sided drilling fixture for die-forged pistons and double-sided drilling process thereof3 May 2022US 11,318,544 B2Chongqing Vocational Institute of Engineering
- Automated rivet apparatus for automated installation of semi-tubular fastener rivets30 Nov 2021US 11,185,912 B2The Boeing Company
- Automatic machine and method for automatically drilling and milling glass sheets arranged vertically7 Jul 2020US 10,702,966 B2Forel SPA
- Cutting tool for boring, machining apparatus for boring and method for boring26 Jun 2025US 2025/0205791 A1Haru Technique Laboratory Inc.
- Cutting tool for boring, machining apparatus for boring and method for boring21 Jul 2022US 2022/0226909 A1Haru Technique Laboratory Inc.
- Method for Automated Installation of Semi-Tubular Fastener Rivets3 Feb 2022US 2022/0032361 A1The Boeing Company
- Spherical cutting tool, system and method of using23 Dec 2021US 2021/0394283 A1
- Automated rivet apparatus and method for automated installation of semi-tubular fastener rivets29 Apr 2021US 2021/0121940 A1The Boeing Company
Most cited
By later US patents
- Drilling device for drilling plates susceptible to breaking33US 4,730,420 ABenteler-Werke AG · 1988
- Stringer clip end effector18US 5,127,139 AThe Boeing Company · 1992
- Apparatus and method for separately boring precisely aligned opposing screw holes in individual frame members to be joined at a miter joint18US 6,955,508 B12005
- Glass drilling machine with cooling fluid back pressure control system8US 5,028,176 AToledo Automated Concepts, Inc. · 1991
- Method for piercing doubling plate for H-beam and tool for processing doubling plate for H-beam7US 4,147,460 AMiyakawa Industry Co., Ltd. · 1979