E21B 17/006
Accessories for drilling pipes
Official title: {Accessories for drilling pipes, e.g. cleaners (wear protectors E21B17/10; handling drilling pipes E21B19/00; thread protectors B65D59/00)}
E21B17/006 (Accessories for drilling pipes) appears on 416 US grants and 383 published applications in this corpus.
Search patents in E21B- Granted patents
- 416
- Published applications
- 383
- Assignees
- 196
- Inventors
- 756
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 6 |
| 2003 | 8 | 5 |
| 2004 | 2 | 4 |
| 2005 | 1 | 7 |
| 2006 | 5 | 8 |
| 2007 | 5 | 8 |
| 2008 | 6 | 9 |
| 2009 | 3 | 9 |
| 2010 | 5 | 14 |
| 2011 | 12 | 7 |
| 2012 | 4 | 15 |
| 2013 | 7 | 16 |
| 2014 | 8 | 18 |
| 2015 | 13 | 20 |
| 2016 | 20 | 33 |
| 2017 | 23 | 20 |
| 2018 | 17 | 23 |
| 2019 | 21 | 27 |
| 2020 | 30 | 29 |
| 2021 | 28 | 33 |
| 2022 | 25 | 21 |
| 2023 | 25 | 20 |
| 2024 | 16 | 12 |
| 2025 | 18 | 14 |
| 2026 | 11 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for earth drilling6 Oct 2026US 12,753,664 B2Mhwirth AS
- Method and apparatus for cleaning and inspecting oil well drilling mud flow lines25 Aug 2026US 12,715,025 B1Tri-State Environmental, LLC
- Antenna array for tracking an object28 Jul 2026US 12,692,780 B2Grant Prideco, L.P.
- Cooling for geothermal well drilling14 Jul 2026US 12,680,391 B2Eavor Technologies Inc.
- System and method for locating, measuring, counting, and aiding in the handling of drill pipes23 Jun 2026US 12,663,260 B2Helmerich & Payne Technologies, LLC
- Radio frequency identifier based telemetry for surface and downhole communication13 Aug 2026US 2026/0235026 A1Schlumberger Technology Corporation
- Identification and/or tracking insert for drilling consumables and systems and apparatuses comprising same30 Jul 2026US 2026/0218573 A1Boart Longyear Manufacturing And Distribution Inc.
- Device, system and method for removal of cable clamps from a pipe string30 Jul 2026US 2026/0218581 A1Odfjell Technology Invest Ltd
- Well pipe handling9 Jul 2026US 2026/0193942 A1Mhwirth AS
- Robotic pipe dope application system18 Dec 2025US 2025/0382848 A1National Oilwell Varco, L. P.
Most cited
By later US patents
- Method and apparatus for determining position in a pipe176US 6,759,968 B2Marathon Oil Company · 2004
- Method and apparatus for determining position in a pipe167US 6,333,699 B1Marathon Oil Company · 2001
- Device for protecting threadings and butt-type joint bearing surfaces of metallic tubes128US 4,796,668 AVallourec · 1989
- Apparatus identification systems and methods123US 7,159,654 B2Varco I/P, Inc. · 2007
- System for drill string tallying, tracking and service factor measurement120US 5,202,680 A1993