B23Q 39/026
Simultaneous working of toolheads
Official title: {simultaneous working of toolheads}
B23Q39/026 (Simultaneous working of toolheads) appears on 75 US grants and 86 published applications in this corpus.
Search patents in B23Q- Granted patents
- 75
- Published applications
- 86
- Assignees
- 74
- Inventors
- 225
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 5 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 1 | 2 |
| 2008 | 1 | 4 |
| 2009 | 1 | 3 |
| 2010 | 0 | 3 |
| 2011 | 1 | 4 |
| 2012 | 4 | 2 |
| 2013 | 2 | 7 |
| 2014 | 4 | 9 |
| 2015 | 7 | 4 |
| 2016 | 3 | 2 |
| 2017 | 3 | 2 |
| 2018 | 2 | 3 |
| 2019 | 2 | 5 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 3 |
| 2023 | 2 | 5 |
| 2024 | 2 | 9 |
| 2025 | 3 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Numerically-controlled lathe, numerically-controlled device therefor and processing procedure thereby53US 5,127,140 AHitachi Seiki Co., Ltd. · 1992
- Machine tool for multiple surface machining33US 4,730,373 AWashino Engineering Company, Limited · 1988
- Numeric-control machine tool for turning and hobbing mechanical parts30US 6,079,090 ANuova Trasmissione S.r.l. · 2000
- Positioning apparatus for multiple-spindle machining22US 5,314,397 AFord Motor Company · 1994
- Highly flexible machine tool22US 6,298,531 B1Witzig & Frank GmbH · 2001