B23B 29/03471
Boring and facing heads
Official title: {Boring and facing heads}
B23B29/03471 (Boring and facing heads) appears on 20 US grants and 9 published applications in this corpus.
Search patents in B23B- Granted patents
- 20
- Published applications
- 9
- Assignees
- 19
- Inventors
- 37
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Tool holder and machining method25 Nov 2025US 12,479,033 B2Makino Milling Machine Co., Ltd.
- High-performance facing head8 Nov 2022US 11,491,553 B2OMG, Inc.
- Facing accessory for a portable boring apparatus10 Sep 2019US 10,406,604 B2Usinage Filiatrault Inc.
- Precision CNC facing lathe18 Apr 2017US 9,623,530 B2Yantai Luchen-Seawoo Cnc Machinery Co., Ltd
- Boring and facing head2 Feb 2016US 9,248,505 B2D'Andrea S.p.A.
- Tool holder and machining method25 Aug 2022US 2022/0266350 A1Makino Milling Machine Co., Ltd.
- High-performance facing head15 Apr 2021US 2021/0107067 A1OMG, Inc.
- Facing accessory for a portable boring apparatus5 Dec 2019US 2019/0366445 A1Usinage Filiatrault Inc.
- Facing accessory for a portable boring apparatus5 Oct 2017US 2017/0282256 A1Usinage Filiatrault Inc.
- Boring and facing head22 Jan 2015US 2015/0020654 A1D'Andrea S.p.A.
Most cited
By later US patents
- Facing and inside-turning head17US 4,067,251 AKomet Stahlhalter- und Werkzeugfabrik Robert Breuning GmbH · 1978
- Contouring machine with radial slide head16US 4,577,535 AAMCA International Corporation · 1986
- Facing and boring head14US 4,184,391 AKomet Stahlhalter- und Werkzeugfabrik Robert Breuning GmbH · 1980
- Machine tool12US 7,793,574 B2Climax Portable Machine Tools, Inc. · 2010
- Device for holding and operating a facing head11US 5,307,714 AKomet Praezisionswerkzenge Robert Breuning GmbH · 1994