B23B 49/04
Devices for boring or drilling centre holes in workpieces
B23B49/04 (Devices for boring or drilling centre holes in workpieces) appears on 38 US grants and 22 published applications in this corpus.
Search patents in B23B- Granted patents
- 38
- Published applications
- 22
- Assignees
- 27
- Inventors
- 59
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 3 |
| 2018 | 1 | 1 |
| 2019 | 3 | 0 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 3 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dynamicaly configurable arbor assembly apparatus16 Jan 2024US 11,872,642 B2
- Rotary tool for lower receiver manufacturing24 Oct 2023US 11,794,261 B2BlackHawk Manufacturing Group Inc.
- Machining center for processing center groove and center groove processing method of a crankshaft using the same11 Jul 2023US 11,697,163 B2Hyundai Motor Company
- Apparatuses and methods for guiding a drill bit to form a hole30 Aug 2022US 11,426,804 B2The Boeing Company
- Rotary tool for lower receiver manufacturing12 Apr 2022US 11,298,759 B2BlackHawk Manufacturing Group Inc.
- Self-centering drill assembly19 Feb 2026US 2026/0048440 A1
- Machine and process for forming an axle shaft19 Dec 2024US 2024/0416442 A1Federal Screw Works
- Tool holder and tool rest for machine tool19 Sep 2024US 2024/0307975 A1Star Micronics Co., Ltd.
- Dynamicaly configurable arbor assembly apparatus18 May 2023US 2023/0150041 A1
- Rotary tool for lower receiver manufacturing2 Feb 2023US 2023/0032401 A1BlackHawk Manufacturing Group Inc.
Most cited
By later US patents
- Universal drill guide25US 5,797,708 A1998
- Tenon forming tool23US 4,798,503 A1989
- Nose piece adaptors for manual or power feed drills23US 4,850,755 ABritish Aerospace PLC · 1989
- Cooling and dust collecting apparatus for machine tool16US 5,544,986 AFuji Jukogyo Kabushiki Kaisha · 1996
- Method and machine for a balancing centering of workpieces which are to be machined only at certain portions, particularly crankshafts13US 4,884,210 AGFM Gesellschaft fur Fertigungstechnik und Maschinenbau Gesellschaft m.b.H. · 1989