B23B 13/04
Arrangements for automatically conveying or chucking or guiding stock: for turning-machines with
Official title: for turning-machines with a plurality of working-spindles
B23B13/04 (Arrangements for automatically conveying or chucking or guiding stock: for turning-machines with) appears on 47 US grants and 34 published applications in this corpus.
Search patents in B23B- Granted patents
- 47
- Published applications
- 34
- Assignees
- 27
- Inventors
- 82
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 2 | 1 |
| 2016 | 3 | 3 |
| 2017 | 3 | 2 |
| 2018 | 0 | 3 |
| 2019 | 1 | 1 |
| 2020 | 3 | 3 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 0 | 2 |
| 2024 | 3 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machine tool18 Aug 2026US 12,708,974 B2Etxe-Tar, S.A.
- Machine tool system27 May 2025US 12,311,490 B2Murata Machinery, Ltd.
- Machine tool and machining method18 Mar 2025US 12,251,763 B2Citizen Machinery Co., Ltd.
- Machine tool and detection method21 Jan 2025US 12,202,049 B2Citizen Watch Co., Ltd.
- Machine tool10 Dec 2024US 12,162,078 B2Citizen Machinery Co., Ltd.
- Machine tool8 Oct 2026US 2026/0307196 A1Etxe-Tar, S.A.
- Machine Tool12 Mar 2026US 2026/0070129 A1Star Micronics Co., Ltd.
- Tool post comprising a plurality of tool-holder spindles and numerically-controlled machine tool including such a tool post13 Feb 2025US 2025/0050425 A1ETA SA Manufacture Horlogere Suisse
- Auxiliary spindle for a tool holder turret19 Sep 2024US 2024/0307972 A1Gildemeister Italiana S.P.A.
- Forward-facing two-spindle lathe22 Aug 2024US 2024/0278328 A1Fuji Corporation
Most cited
By later US patents
- Bar stock feeding means29US 5,115,702 AIndex-Werke GmbH & Co. KG Hahn & Tessky · 1992
- Automatic magazine and feeder for automatic multi-mandrel lathe20US 4,292,864 A1981
- Bar feeders13US 3,941,256 ATwyford Moors (Aircraft & Engineering Limited) · 1976
- Control means for a bar holder and feeder coupled to an automatic machine tool13US 4,088,230 AHagenuk Vormals Neufeldt & Kuhnke GmbH · 1978
- Apparatus for feeding bar stock to an automatic screw machine12US 5,896,793 ASki Industries, Inc. · 1999