E21B 17/12
Devices for placing or drawing out wear protectors
E21B17/12 (Devices for placing or drawing out wear protectors) appears on 34 US grants and 24 published applications in this corpus.
Search patents in E21B- Granted patents
- 34
- Published applications
- 24
- Assignees
- 27
- Inventors
- 61
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 3 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
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
- Biased lug cartridge, wear bushing with biased lug cartridge, and system and method using the same28 Jan 2025US 12,209,466 B2Innovex International, Inc.
- Protector for the ends of an elongate member4 Jun 2024US 12,000,520 B2Bewi Energy AS
- Modular bowl protector28 Mar 2023US 11,613,939 B1Saudi Arabian Oil Company
- Wear bushing deployment and retrieval tool for subsea wellhead13 Jul 2021US 11,060,383 B2Weatherford Technology Holdings, LLC
- Robust Downhole Pump Barrel20 Aug 2026US 2026/0243245 A1Q2 Artificial Lift Services LLC
- Robust downhole pump barrel15 May 2025US 2025/0154945 A1Ravdos Holdings Inc.
- Biased lug cartridge, wear bushing with biased lug cartridge, and system and method using the same28 Dec 2023US 2023/0417111 A1Dril-Quip, Inc.
- Modular bowl protector30 Mar 2023US 2023/0094755 A1Saudi Arabian Oil Company
- Apparatus for handling protectors for elongate objects26 May 2022US 2022/0163161 A1Bewi Energy AS
Most cited
By later US patents
- Blast joint for snubbing installation79US 4,915,177 A1990
- Wellhead bowl protector and retrieving tool68US 5,044,438 A1991
- Tubing friction reducer40US 5,692,563 AWestern Well Tool, Inc. · 1997
- Stabilizer for drill strings26US 4,011,918 AChristensen, Inc. · 1977
- Method of creating a sleeve on tubing18US 7,412,761 B22008