B23B 29/02
Boring bars
B23B29/02 (Boring bars) appears on 246 US grants and 172 published applications in this corpus.
Search patents in B23B- Granted patents
- 246
- Published applications
- 172
- Assignees
- 154
- Inventors
- 446
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 5 |
| 2003 | 5 | 4 |
| 2004 | 3 | 6 |
| 2005 | 2 | 9 |
| 2006 | 7 | 2 |
| 2007 | 1 | 5 |
| 2008 | 3 | 6 |
| 2009 | 2 | 5 |
| 2010 | 7 | 8 |
| 2011 | 0 | 5 |
| 2012 | 4 | 5 |
| 2013 | 6 | 6 |
| 2014 | 5 | 3 |
| 2015 | 7 | 12 |
| 2016 | 6 | 12 |
| 2017 | 8 | 10 |
| 2018 | 19 | 8 |
| 2019 | 11 | 10 |
| 2020 | 8 | 10 |
| 2021 | 7 | 8 |
| 2022 | 7 | 7 |
| 2023 | 5 | 11 |
| 2024 | 7 | 7 |
| 2025 | 4 | 3 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Active piezoelectric tool, active piezoelectric device and operating method of the active piezoelectric tool2 Jun 2026US 12,643,156 B2Nuovo Pignone Tecnologie Srl
- Holder, cutting tool, and method for manufacturing machined product5 May 2026US 12,617,025 B2KYOCERA Corporation
- Tool holder for tool assembly and tool assembly comprising tool holder24 Mar 2026US 12,583,040 B2Maq AB
- Boring bar with electrodynamic actuators for counteracting vibrations and machine tool provided with such a bar24 Mar 2026US 12,584,533 B2Hutchinson
- Non-rotating boring tool for internal turning and a boring arrangement comprising such a boring tool13 Jan 2026US 12,521,796 B2Seco Tools Tooling Systems
- Vibration-proof structure for rotating body8 Oct 2026US 2026/0307153 A1Big Daishowa Co., Ltd.
- Vibration damped cutter holder27 Aug 2026US 2026/0249363 A1National Chung Hsing University
- Coolant reflector and turning tool comprising a coolant reflector23 Jul 2026US 2026/0208270 A1AB Sandvik Coromant
- Portable boring machine28 May 2026US 2026/0145248 A1Sir Meccanica S.r.l.
- Rotary Boring Tool16 Apr 2026US 2026/0102828 A1Kennametal Inc.
Most cited
By later US patents
- Multi-function pipe machining apparatus56US 4,813,314 AWestinghouse Electric Corp. · 1989
- Active vibration control device45US 5,170,103 AUniversity of Kentucky Research Foundation · 1992
- Multi-function pipe machining apparatus43US 4,770,074 AWestinghouse Electric Corp. · 1988
- Boring tool and method of reducing vibrations therein36US 4,553,884 AKennametal Inc. · 1985
- Tunable boring bar for suppressing vibrations and method thereof34US 6,443,673 B1Design & Manufacturing Solutions, Inc. · 2002