E21B 19/084
With flexible drawing means
Official title: with flexible drawing means, e.g. cables
E21B19/084 (With flexible drawing means) appears on 278 US grants and 187 published applications in this corpus.
Search patents in E21B- Granted patents
- 278
- Published applications
- 187
- Assignees
- 143
- Inventors
- 478
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 4 |
| 2004 | 4 | 7 |
| 2005 | 3 | 2 |
| 2006 | 4 | 3 |
| 2007 | 2 | 2 |
| 2008 | 0 | 6 |
| 2009 | 1 | 6 |
| 2010 | 4 | 6 |
| 2011 | 4 | 5 |
| 2012 | 4 | 5 |
| 2013 | 4 | 6 |
| 2014 | 5 | 9 |
| 2015 | 7 | 9 |
| 2016 | 10 | 20 |
| 2017 | 15 | 13 |
| 2018 | 8 | 17 |
| 2019 | 17 | 18 |
| 2020 | 21 | 12 |
| 2021 | 10 | 8 |
| 2022 | 9 | 4 |
| 2023 | 6 | 6 |
| 2024 | 7 | 8 |
| 2025 | 5 | 5 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drilling and bolting tool18 Aug 2026US 12,709,981 B2Joy Global Underground Mining LLC
- End effectors for automated pipe handling5 May 2026US 12,618,298 B2National Oilwell Varco, L. P.
- Counterbalance systems and related methods for catwalk systems21 Apr 2026US 12,607,077 B2Forum US, Inc.
- Hydraulic actuator for controlling operations of drilling machines17 Mar 2026US 12,577,834 B2Caterpillar Inc.
- System and method for deploying sensing cable into a well20 Jan 2026US 12,529,302 B2Halliburton Energy Services.Inc.
- Guiding assembly and a rock drilling apparatus comprising the same8 Oct 2026US 2026/0308993 A1Sandvik Mining and Construction Oy
- System for lowering pipes in a pipe string1 Oct 2026US 2026/0298037 A1
- End effectors for automated pipe handling27 Aug 2026US 2026/0251024 A1National Oilwell Varco, L. P.
- Earth drilling device for cable-guided drilling and method for inserting a drill string into the ground using an earth drilling device for cable-guided drilling9 Jul 2026US 2026/0193944 A1TRACTO-TECHNIK GmbH & Co. KG
- Earth-working machine and method for operating an earth-working machine14 May 2026US 2026/0132689 A1BAUER Maschinen GmbH
Most cited
By later US patents
- Draw-works and method for operating the same154US 10,138,098 B2National Oilwell Varco Norway AS · 2018
- Top drive well casing system and method152US 6,679,333 B2Canrig Drilling Technology Ltd. · 2004
- Portable workover rig with extendable mast substructure, platform mounted drawworks and adjustable wellhead anchor143US 4,290,495 AHydra-Rig, Inc. · 1981
- Automatic drilling system98US 4,875,530 AParker Technology, Inc. · 1989
- Method and apparatus for displacing a top drive torque track98US 5,501,286 ABowen Tools, Inc. · 1996