E21B 17/1071
Specially adapted for pump rods
Official title: {specially adapted for pump rods, e.g. sucker rods}
E21B17/1071 (Specially adapted for pump rods) appears on 130 US grants and 111 published applications in this corpus.
Search patents in E21B- Granted patents
- 130
- Published applications
- 111
- Assignees
- 78
- Inventors
- 201
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 4 |
| 2009 | 2 | 4 |
| 2010 | 4 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 7 |
| 2013 | 0 | 8 |
| 2014 | 2 | 3 |
| 2015 | 8 | 6 |
| 2016 | 3 | 11 |
| 2017 | 8 | 4 |
| 2018 | 5 | 4 |
| 2019 | 8 | 6 |
| 2020 | 5 | 13 |
| 2021 | 12 | 9 |
| 2022 | 10 | 8 |
| 2023 | 8 | 5 |
| 2024 | 2 | 2 |
| 2025 | 3 | 7 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Robust downhole pump barrel12 May 2026US 12,624,691 B2Q2 Artificial Lift Services LLC
- Anti-rotation device for a rod rotator of a reciprocating rod pumping system24 Mar 2026US 12,584,390 B2
- Rod guide configurations for sucker rod pumps24 Feb 2026US 12,560,034 B2Oilify New-tech Solutions Inc.
- Robust valve rod guide assembly17 Feb 2026US 12,553,297 B2Q2 Artificial Lift Services LLC
- Coatings for wear surfaces and related apparatuses, devices, systems, and methods10 Feb 2026US 12,546,172 B2ChampionX LLC
- Rod guide configurations for sucker rod pumps17 Sep 2026US 2026/0275816 A1Oilify Sucker Rod Inc.
- Robust Downhole Pump Barrel20 Aug 2026US 2026/0243245 A1Q2 Artificial Lift Services LLC
- Coatings for wear surfaces and related apparatuses, devices, systems, and methods12 Mar 2026US 2026/0071504 A1ChampionX LLC
- Improved well component6 Nov 2025US 2025/0341136 A1Wear Detection Technologies Pty Ltd
- Sucker rod stripper29 May 2025US 2025/0172051 A1Datwyler Parco Holdings Inc.
Most cited
By later US patents
- Sucker rod guide62US 4,858,688 A1989
- Centralizer58US 5,247,990 A1993
- Molded plastic paraffin scrapers and centralizers45US 4,088,185 AJ. M. Huber Corporation · 1978
- Rod guide42US 5,358,041 AEnterra Patco Oil Field Products · 1994
- Well rod, centralizer and centralizer stop interfaces with wear reducing surface41US 5,692,562 AEnterra Patco Oilfield Products Limited · 1997