E21B 3/035
With slipping or elastic transmission
Official title: with slipping or elastic transmission
E21B3/035 (With slipping or elastic transmission) appears on 19 US grants and 19 published applications in this corpus.
Search patents in E21B- Granted patents
- 19
- Published applications
- 19
- Assignees
- 12
- Inventors
- 40
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 3 |
| 2023 | 1 | 0 |
| 2024 | 4 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Clutch mechanism for gripping tools24 Dec 2024US 12,173,761 B1Noetic Technologies Inc.
- System and method for mitigating stick-slip9 Apr 2024US 11,952,883 B2Halliburton Energy Services.Inc.
- Electric drill20 Feb 2024US 11,905,761 B2Globe (Jiangsu) Co., Ltd.
- Mitigation of backward whirl in drill bits16 Jan 2024US 11,875,096 B2Halliburton Energy Services.Inc.
- Variable-length axial linkage for tubular running tools24 Jan 2023US 11,560,761 B2Noetic Technologies Inc.
- Apparatus and a method of drilling holes2 Apr 2026US 2026/0092502 A1Golf & Machines Aps
- Clutch mechanism for gripping tools19 Dec 2024US 2024/0418227 A1Noetic Technologies Inc.
- Variable-length axial linkage for tubular running tools6 Oct 2022US 2022/0316284 A1Noetic Technologies Inc.
- Mitigation of backward whirl in drill bits21 Jul 2022US 2022/0228438 A1Halliburton Energy Services.Inc.
- Electric drill28 Apr 2022US 2022/0127910 A1Globe (Jiangsu) Co., Ltd.
Most cited
By later US patents
- Power drill with drill bit unit capable of providing intermittent axial impact37US 5,531,278 A1996
- Portable handheld drilling apparatus20US 5,358,062 AAndreas Stihl AG & Co. KG · 1994
- System and method for mitigating stick-slip14US 9,689,250 B2Tesco Corporation · 2017
- System and method for mitigating stick-slip6US 10,458,223 B2Nabors Drilling Technologies USA, Inc. · 2019
- Variable-length axial linkage for tubular running tools4US 11,560,761 B2Noetic Technologies Inc. · 2023