E21B 10/573
Characterised by support details
Official title: characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
E21B10/573 (Characterised by support details) appears on 837 US grants and 722 published applications in this corpus.
Search patents in E21B- Granted patents
- 837
- Published applications
- 722
- Assignees
- 122
- Inventors
- 687
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 11 | 0 |
| 1997 | 20 | 0 |
| 1998 | 12 | 0 |
| 1999 | 21 | 0 |
| 2000 | 24 | 0 |
| 2001 | 30 | 10 |
| 2002 | 17 | 12 |
| 2003 | 12 | 8 |
| 2004 | 8 | 11 |
| 2005 | 8 | 12 |
| 2006 | 10 | 17 |
| 2007 | 5 | 20 |
| 2008 | 10 | 24 |
| 2009 | 17 | 26 |
| 2010 | 21 | 35 |
| 2011 | 25 | 43 |
| 2012 | 30 | 44 |
| 2013 | 33 | 43 |
| 2014 | 49 | 75 |
| 2015 | 42 | 48 |
| 2016 | 42 | 54 |
| 2017 | 53 | 42 |
| 2018 | 51 | 43 |
| 2019 | 63 | 44 |
| 2020 | 36 | 27 |
| 2021 | 26 | 13 |
| 2022 | 12 | 24 |
| 2023 | 21 | 14 |
| 2024 | 21 | 17 |
| 2025 | 13 | 4 |
| 2026 | 11 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fixed cutter drill bits with mechanically attached cutter element assemblies18 Aug 2026US 12,709,946 B2Grant Prideco, L.P.
- Drilling apparatus, drill bit, and method for testing drill bit performance11 Aug 2026US 12,704,026 B2Georgia Tech Research Corporation
- Polycrystalline diamond and methods for fabricating the same14 Jul 2026US 12,680,395 B2US Synthetic Corporation
- Command address input buffer bias current reduction2 Jun 2026US 12,645,399 B2
- Devices and systems for cutting element assemblies26 May 2026US 12,637,911 B2Schlumberger Technology Corporation
- Methods of making earth-boring tools10 Sep 2026US 2026/0266142 A1Baker Hughes Oilfield Operations LLC
- Command address input buffer bias current reduction10 Sep 2026US 2026/0267562 A1Lodestar Licensing Group LLC
- Multi-material bit blank and related methods3 Sep 2026US 2026/0258704 A1Baker Hughes Oilfield Operations LLC
- Fixed cutter drill bits including cutter elements with high abrasion resistant polycrystalline diamond segments27 Aug 2026US 2026/0251020 A1Grant Prideco, L.P.
- Producing hydro-efflux hammer using catalyst-free pdc cutters20 Aug 2026US 2026/0241447 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Cutting composite formed of cemented carbide substrate and diamond layer481US 5,120,327 ADiamant Boart-Stratabit (USA) Inc. · 1992
- Rock bits and inserts therefor390US 4,811,801 ASmith International, Inc. · 1989
- Cutting element for drill bits333US 5,544,713 ADennis Tool Company · 1996
- Diamond cutting structure for drilling hard subterranean formations322US 5,460,233 ABaker Hughes Incorporated · 1995
- Rotary drill bit318US 4,109,737 AGeneral Electric Company · 1978