E21B 10/00
Drill bits
Official title: Drill bits (specially adapted for deflecting the direction of boring {E21B7/064}; with means for collecting substances E21B27/00)
E21B10/00 (Drill bits) appears on 7,149 US grants and 5,410 published applications in this corpus.
Search patents in E21B- Granted patents
- 7,149
- Published applications
- 5,410
- Assignees
- 1,206
- Inventors
- 6,542
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 79 | 0 |
| 1977 | 66 | 0 |
| 1978 | 68 | 0 |
| 1979 | 51 | 0 |
| 1980 | 104 | 0 |
| 1981 | 125 | 0 |
| 1982 | 58 | 0 |
| 1983 | 89 | 0 |
| 1984 | 89 | 0 |
| 1985 | 118 | 0 |
| 1986 | 90 | 0 |
| 1987 | 99 | 0 |
| 1988 | 109 | 0 |
| 1989 | 108 | 0 |
| 1990 | 85 | 0 |
| 1991 | 109 | 0 |
| 1992 | 83 | 0 |
| 1993 | 77 | 0 |
| 1994 | 108 | 0 |
| 1995 | 110 | 0 |
| 1996 | 84 | 0 |
| 1997 | 104 | 0 |
| 1998 | 123 | 0 |
| 1999 | 128 | 0 |
| 2000 | 157 | 0 |
| 2001 | 148 | 48 |
| 2002 | 133 | 110 |
| 2003 | 120 | 104 |
| 2004 | 85 | 160 |
| 2005 | 84 | 121 |
| 2006 | 107 | 172 |
| 2007 | 92 | 190 |
| 2008 | 128 | 239 |
| 2009 | 121 | 219 |
| 2010 | 203 | 343 |
| 2011 | 202 | 284 |
| 2012 | 207 | 255 |
| 2013 | 211 | 301 |
| 2014 | 230 | 335 |
| 2015 | 260 | 308 |
| 2016 | 277 | 334 |
| 2017 | 249 | 288 |
| 2018 | 299 | 269 |
| 2019 | 322 | 264 |
| 2020 | 269 | 207 |
| 2021 | 216 | 175 |
| 2022 | 170 | 195 |
| 2023 | 159 | 152 |
| 2024 | 197 | 129 |
| 2025 | 149 | 113 |
| 2026 | 90 | 95 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E21B 10/46Drill bits: characterised by wear resisting parts3,462
- E21B 10/08Roller bits1,581
- E21B 10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter1,143
- E21B 10/60Drill bits: characterised by conduits or nozzles for drilling fluids793
- E21B 10/62Drill bits: characterised by parts776
- E21B 10/42Rotary drag type drill bits with teeth, blades or like cutting elements714
- E21B 10/36Percussion drill bits476
- E21B 10/44Bits with helical conveying portion389
Recent patents
- Hydrojets rotary drill bit6 Oct 2026US 12,753,657 B2Cooled Edge Bits, Inc.
- Devices, systems, and methods for a cutting element6 Oct 2026US 12,753,658 B2Schlumberger Technology Corporation
- Earth-boring tools, hybrid earth-boring tools, and associated apparatus and methods29 Sep 2026US 12,747,636 B2Baker Hughes Oilfield Operations LLC
- Method to extend PDC bit life and improve drilling speed by mitigating slip-stick29 Sep 2026US 12,747,637 B2
- Cutting element including two or more shaped cutting features, each having a convex and inwardly/downwardly angled shape29 Sep 2026US 12,747,638 B2Halliburton Energy Services.Inc.
- Augers8 Oct 2026US 2026/0308981 A1Milwaukee Electric Tool Corporation
- High pressure fluid jet drill system8 Oct 2026US 2026/0308985 A1Dig Energy, Inc.
- Earth-boring tools, nozzles, and associated structures, apparatus, and methods8 Oct 2026US 2026/0308986 A1Baker Hughes Oilfield Operations LLC
- Downhole tool and a bit for such downhole tool8 Oct 2026US 2026/0308987 A1Welltec A/S
- A cutting element and methods of making same24 Sep 2026US 2026/0286782 A1Element Six (UK) Limited
Most cited
By later US patents
- Composite polycrystalline diamond compact502US 4,604,106 ASmith International, Inc. · 1986
- Cutting composite formed of cemented carbide substrate and diamond layer481US 5,120,327 ADiamant Boart-Stratabit (USA) Inc. · 1992
- Temperature resistant abrasive compact and method for making same436US 4,224,380 AGeneral Electric Company · 1980
- Diamond rock tools for percussive and rotary crushing rock drilling421US 5,154,245 ASandvik AB · 1992
- Cutting elements for rotary drill bits409US 5,135,061 A1992