B23B 51/0461
With exchangeable cutting heads or crowns
Official title: {with exchangeable cutting heads or crowns}
B23B51/0461 (With exchangeable cutting heads or crowns) appears on 10 US grants and 13 published applications in this corpus.
Search patents in B23B- Granted patents
- 10
- Published applications
- 13
- Assignees
- 5
- Inventors
- 17
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 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 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 6 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow-point condensing-compaction tool31 Dec 2024US 12,178,448 B2Huwais IP Holding LLC
- Method for producing a cut section for a drill bit22 Nov 2022US 11,504,815 B2Hilti Aktiengesellschaft
- Cutting section for a drill bit22 Nov 2022US 11,504,881 B2Hilti Aktiengesellschaft
- Rotary power tool including threaded bit attachment13 Oct 2020US 10,799,959 B2Milwaukee Electric Tool Corporation
- Universal base attachment bit and cutting bit assembly6 Aug 2019US 10,368,880 B1King Saud University
- Precision guide for a bowling ball drill bit6 Aug 2026US 2026/0225164 A1
- Method for replacing the drilling segments of a drill bit, and cutting section for a drill bit15 Feb 2024US 2024/0051069 A1Hilti Aktiengesellschaft
- Hollow-point condensing-compaction tool26 May 2022US 2022/0160371 A1Huwais IP Holding LLC
- Cutting section for a drill bit24 Jun 2021US 2021/0187631 A1Hilti Aktiengesellschaft
- Cutting section for a drill bit17 Jun 2021US 2021/0178492 A1Hilti Aktiengesellschaft
Most cited
By later US patents
- Rotary cutter24US 3,970,407 A1976
- Drilling bit8US 4,218,162 A1980
- Rotary power tool including threaded bit attachment3US 10,799,959 B2Milwaukee Electric Tool Corporation · 2020
- Drill bit with an exchangeable cutting portion3US 9,821,379 B2Hilti Aktiengesellschaft · 2017
- Hole machining tool and guide pad adjustment mechanism therefor2US 10,201,861 B2Iscar, Ltd. · 2019