E21B 19/086
With a fluid-actuated cylinder
Official title: with a fluid-actuated cylinder (E21B19/084, E21B19/087, E21B19/09 take precedence)
E21B19/086 (With a fluid-actuated cylinder) appears on 268 US grants and 174 published applications in this corpus.
Search patents in E21B- Granted patents
- 268
- Published applications
- 174
- Assignees
- 160
- Inventors
- 434
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 11 | 0 |
| 2001 | 12 | 2 |
| 2002 | 5 | 4 |
| 2003 | 6 | 9 |
| 2004 | 3 | 2 |
| 2005 | 6 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 5 |
| 2008 | 0 | 6 |
| 2009 | 6 | 7 |
| 2010 | 5 | 9 |
| 2011 | 5 | 5 |
| 2012 | 6 | 4 |
| 2013 | 3 | 13 |
| 2014 | 7 | 7 |
| 2015 | 7 | 10 |
| 2016 | 8 | 12 |
| 2017 | 9 | 10 |
| 2018 | 5 | 11 |
| 2019 | 11 | 10 |
| 2020 | 11 | 10 |
| 2021 | 7 | 7 |
| 2022 | 8 | 9 |
| 2023 | 8 | 4 |
| 2024 | 5 | 7 |
| 2025 | 2 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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