B28D 1/146
Tools therefor
Official title: {Tools therefor (drill bits for earth or rock drilling E21B10/00)}
B28D1/146 (Tools therefor) appears on 97 US grants and 141 published applications in this corpus.
Search patents in B28D- Granted patents
- 97
- Published applications
- 141
- Assignees
- 58
- Inventors
- 240
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 6 |
| 2006 | 4 | 4 |
| 2007 | 3 | 5 |
| 2008 | 2 | 4 |
| 2009 | 5 | 6 |
| 2010 | 2 | 6 |
| 2011 | 4 | 6 |
| 2012 | 1 | 5 |
| 2013 | 0 | 6 |
| 2014 | 2 | 4 |
| 2015 | 5 | 3 |
| 2016 | 5 | 5 |
| 2017 | 2 | 14 |
| 2018 | 4 | 13 |
| 2019 | 8 | 4 |
| 2020 | 9 | 7 |
| 2021 | 5 | 8 |
| 2022 | 5 | 9 |
| 2023 | 6 | 2 |
| 2024 | 7 | 11 |
| 2025 | 5 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drilling tool18 Aug 2026US 12,708,969 B2Robert Bosch GmbH
- Drill bit for percussion drilling or impact drilling use for cutting reinforcing steel in concrete7 Apr 2026US 12,594,656 B2Heller Tools GmbH
- One-piece cutting head for a drill bit17 Feb 2026US 12,551,954 B2Black & Decker Inc.
- Weep-hole drilling2 Dec 2025US 12,486,723 B2Concore BV
- Chisel and method for producing a chisel8 Jul 2025US 12,350,803 B2Robert Bosch GmbH
- Masonry drill having five blades2 Jul 2026US 2026/0183848 A1Hilti Aktiengesellschaft
- Masonry drill head7 May 2026US 2026/0124787 A1Ceratizit Hard Material Solutions S.A R.L.
- Weep-hole drilling4 Sep 2025US 2025/0277410 A1Concore BV
- One-piece cutting head for a drill bit17 Oct 2024US 2024/0342808 A1Black & Decker Inc.
- Drilling device, in particular suction drilling device, for drilling a drill hole26 Sep 2024US 2024/0316654 A1
Most cited
By later US patents
- Drill bit for glass and ceramic structures42US 4,483,108 A1984
- Tool bit with carrier member and cutting member36US 5,735,648 AHilti Aktiengesellschaft · 1998
- Hard material head and rotary percussion drill bit24US 7,559,382 B2Hilti Aktiengesellschaft · 2009
- Drill for use in drilling hard and brittle materials22US 5,123,217 AKabushiki Kaisha Fujikoshi · 1992
- Apparatus and method for directional drilling of holes21US 6,880,648 B22005