B23B 29/03
Boring heads
B23B29/03 (Boring heads) appears on 569 US grants and 307 published applications in this corpus.
Search patents in B23B- Granted patents
- 569
- Published applications
- 307
- Assignees
- 297
- Inventors
- 830
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 25 | 0 |
| 1978 | 9 | 0 |
| 1979 | 11 | 0 |
| 1980 | 14 | 0 |
| 1981 | 12 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 17 | 0 |
| 1985 | 16 | 0 |
| 1986 | 29 | 0 |
| 1987 | 17 | 0 |
| 1988 | 21 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 3 |
| 2002 | 8 | 5 |
| 2003 | 8 | 5 |
| 2004 | 7 | 11 |
| 2005 | 5 | 12 |
| 2006 | 6 | 10 |
| 2007 | 8 | 13 |
| 2008 | 7 | 12 |
| 2009 | 6 | 16 |
| 2010 | 12 | 15 |
| 2011 | 5 | 19 |
| 2012 | 9 | 18 |
| 2013 | 19 | 17 |
| 2014 | 13 | 18 |
| 2015 | 19 | 16 |
| 2016 | 15 | 16 |
| 2017 | 17 | 16 |
| 2018 | 20 | 16 |
| 2019 | 12 | 14 |
| 2020 | 13 | 17 |
| 2021 | 9 | 7 |
| 2022 | 9 | 14 |
| 2023 | 4 | 4 |
| 2024 | 8 | 4 |
| 2025 | 3 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tool cutting edge adjusting head, method of operating same and correcting tool cutting edge wear21 Jul 2026US 12,686,062 B2Blum-Novotest GmbH
- Rotary cutting tool with support structure16 Jun 2026US 12,654,241 B2Kennametal Inc.
- Tool holder and machining method25 Nov 2025US 12,479,033 B2Makino Milling Machine Co., Ltd.
- Cutting tool2 Sep 2025US 12,403,533 B2Guehring KG
- Boring tool holder and turning tool21 Jan 2025US 12,202,052 B2Sumitomo Electric Hardmetal Corp.
- Tool cutting edge adjusting head, method of operating same and correcting tool cutting edge wear8 Oct 2026US 2026/0307154 A1Blum-Novotest GmbH
- Boring tool and method for manufacturing machined product3 Sep 2026US 2026/0257281 A1KYOCERA Corporation
- Boring Tool21 May 2026US 2026/0138193 A1
- Cutting tool30 Apr 2026US 2026/0115808 A1Sumitomo Electric Hardmetal Corp.
- Boring head and boring tool assembly4 Dec 2025US 2025/0367736 A1Seco Tools AB
Most cited
By later US patents
- Rotating drilling head52US 4,697,484 A1987
- Counterbore for the bilateral attachment of plane surfaces to bolt holes48US 4,756,649 A1988
- Boring tool with balancing means for non-vibrating boring45US 4,626,144 AUrma AG · 1986
- Turning boring head with a tool for radial adjustment43US 4,224,846 AFirma Samson Aktiengesellschaft · 1980
- Rotational machining method39US 5,713,253 AToshiba Kikai Kabushiki Kaisha · 1998