B23B 51/011
Micro drills
Official title: {Micro drills}
B23B51/011 (Micro drills) appears on 49 US grants and 48 published applications in this corpus.
Search patents in B23B- Granted patents
- 49
- Published applications
- 48
- Assignees
- 42
- Inventors
- 108
- Latest grant
- 16 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 3 |
| 2015 | 0 | 6 |
| 2016 | 5 | 3 |
| 2017 | 1 | 3 |
| 2018 | 3 | 3 |
| 2019 | 1 | 4 |
| 2020 | 2 | 4 |
| 2021 | 2 | 0 |
| 2022 | 2 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Small-diameter drill bit16 Aug 2022US 11,413,690 B2MOLDINO Tool Engineering, Ltd.
- Thin drill10 May 2022US 11,325,194 B2Shiba R&D Co., Ltd
- Industrial high speed micro drill2 Nov 2021US 11,161,181 B2
- Small-diameter drill and small-diameter drill manufacturing method17 Aug 2021US 11,090,738 B2MOLDINO Tool Engineering, Ltd.
- Drill structure26 May 2020US 10,661,357 B2Tct Global Limited
- Single-flute drill for printed wiring boards2 Jul 2026US 2026/0183849 A1Union Tool Co.
- Miniature internal boring tool6 Mar 2025US 2025/0073789 A1Iscar, Ltd.
- Mini cutting bit26 Oct 2023US 2023/0339027 A1Hao Juen Technology Co., Ltd.
- Chip breaking structure of mini cutting bit26 Oct 2023US 2023/0339028 A1Hao Juen Technology Co., Ltd.
- Small-diameter drill and small-diameter drill manufacturing method10 Dec 2020US 2020/0384551 A1Mitsubishi Hitachi Tool Engineering, Ltd.
Most cited
By later US patents
- Surface decarburization of a drill bit51US 5,609,447 ARogers Tool Works, Inc. · 1997
- Micro drill with modified drill point45US 4,602,900 A1986
- Single flute drill for drilling holes in printed circuit boards and method of drilling holes in a printed circuit board43US 5,584,617 AInternational Business Machines Corporation · 1996
- Surface decarburization of a drill bit having a refined primary cutting edge36US 5,628,837 ARogers Tool Works, Inc. · 1997
- Multigroove drill bit with angled frontal ridges34US 4,594,034 AHartmetallwerkzeugfabrik Andreas Maier GmbH & Co. KG · 1986