E21B 19/06
Elevators, i.e. rod- or tube-gripping devices
E21B19/06 (Elevators, i.e. rod- or tube-gripping devices) appears on 773 US grants and 743 published applications in this corpus.
Search patents in E21B- Granted patents
- 773
- Published applications
- 743
- Assignees
- 261
- Inventors
- 1,017
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 5 |
| 2002 | 15 | 11 |
| 2003 | 13 | 17 |
| 2004 | 9 | 13 |
| 2005 | 7 | 16 |
| 2006 | 17 | 27 |
| 2007 | 18 | 20 |
| 2008 | 18 | 28 |
| 2009 | 11 | 30 |
| 2010 | 26 | 30 |
| 2011 | 28 | 25 |
| 2012 | 22 | 25 |
| 2013 | 18 | 39 |
| 2014 | 31 | 32 |
| 2015 | 36 | 69 |
| 2016 | 39 | 36 |
| 2017 | 48 | 48 |
| 2018 | 43 | 50 |
| 2019 | 43 | 48 |
| 2020 | 47 | 43 |
| 2021 | 47 | 37 |
| 2022 | 35 | 24 |
| 2023 | 23 | 9 |
| 2024 | 23 | 28 |
| 2025 | 23 | 17 |
| 2026 | 16 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tubular handling with spider control system6 Oct 2026US 12,753,661 B2Weatherford Technology Holdings, LLC
- Boost system for a hoisting system15 Sep 2026US 12,735,949 B2Schlumberger Technology Corporation
- Self-contained spring inserter for drug delivery infusion set1 Sep 2026US 12,723,474 B2Becton, Dickinson and Company
- Method and apparatus for moving tubular rotary slips25 Aug 2026US 12,716,301 B2Helmerich & Payne, Inc.
- Spring bail cylinder apparatus11 Aug 2026US 12,704,028 B2
- Self-contained spring inserter for drug delivery infusion set8 Oct 2026US 2026/0308990 A1Becton, Dickinson and Company
- Spring assist system with positional feedback for carriers of snubbing slip bowls1 Oct 2026US 2026/0298036 A1Consolidated Rig Works, L.P.
- Casing running tool multi-gripper10 Sep 2026US 2026/0266145 A1Nabors Drilling Technologies USA, Inc.
- End effectors for automated pipe handling27 Aug 2026US 2026/0251024 A1National Oilwell Varco, L. P.
- Retention system for retaining deck bushing of drilling machine13 Aug 2026US 2026/0234997 A1Caterpillar Global Mining Equipment LLC
Most cited
By later US patents
- Well system221US 6,296,066 B1Halliburton Energy Services.Inc. · 2001
- Top drive casing system213US 6,536,520 B1Weatherford/Lamb, Inc. · 2003
- Apparatus for gripping a down hole tubular for support and rotation176US 5,297,833 AW-N Apache Corporation · 1994
- Well system175US 7,172,038 B2Halliburton Energy Services.Inc. · 2007
- Pipe running tool166US 6,443,241 B1Varco I/P, Inc. · 2002