B23B 51/00035
Spade drills
Official title: {Spade drills}
B23B51/00035 (Spade drills) appears on 83 US grants and 69 published applications in this corpus.
Search patents in B23B- Granted patents
- 83
- Published applications
- 69
- Assignees
- 44
- Inventors
- 120
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 4 |
| 2003 | 4 | 0 |
| 2004 | 1 | 6 |
| 2005 | 4 | 7 |
| 2006 | 6 | 6 |
| 2007 | 5 | 4 |
| 2008 | 1 | 6 |
| 2009 | 3 | 4 |
| 2010 | 0 | 7 |
| 2011 | 4 | 3 |
| 2012 | 3 | 2 |
| 2013 | 7 | 1 |
| 2014 | 3 | 1 |
| 2015 | 2 | 3 |
| 2016 | 0 | 1 |
| 2017 | 3 | 2 |
| 2018 | 3 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 3 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machining system and cutting insert and methods17 Mar 2026US 12,576,453 B2Allied Machine & Engineering Corp.
- Drill systems with coolant delivery arrangements and methods28 Feb 2023US 11,590,587 B2Allied Machine & Engineering Corp.
- Machining system and cutting insert and methods30 Nov 2021US 11,185,935 B2Allied Machine & Engineering Corp.
- Auger bit with carbide tip2 Jun 2020US 10,668,542 B2Milwaukee Electric Tool Corporation
- Drill bit24 Jul 2018US 10,029,315 B2Milwaukee Electric Tool Corporation
- Spade drill blade and combined blade12 Jun 2025US 2025/0187085 A1
- Cutting plate and method and compression mold for producing a green body of the cutting plate14 Mar 2024US 2024/0082931 A1Walter AG
- Drilling tools and inserts with coolant relief and method20 Jul 2023US 2023/0226621 A1Allied Machine & Engineering Corp.
- Drill systems with coolant delivery arrangements and methods13 Jul 2023US 2023/0219148 A1
- Machining system and cutting insert and methods10 Mar 2022US 2022/0072634 A1Allied Machine & Engineering Corp.
Most cited
By later US patents
- Damaged bolt and screw removing devices97US 7,171,871 B2Eazypower Corporation · 2007
- Drill with a drill point part76US 5,904,455 AKennametal Hertel AG · 1999
- Drilling tool for metallic materials66US 5,474,407 AStellram S.A. · 1995
- High performance cutting tools64US 5,570,978 A1996
- Throw-away tipped drill57US 5,228,812 ASumitomo Electric Industries, Ltd. · 1993