F16F 9/36
Special sealings, including sealings or guides for piston-rods
Official title: Special sealings, including sealings or guides for piston-rods ({F16F9/325, F16F9/3485 take precedence; arrangements for filling via piston rod sealing or guiding means F16F9/432} ; sealing of moving parts in general F16J15/16 - F16J15/56)
F16F9/36 (Special sealings, including sealings or guides for piston-rods) appears on 779 US grants and 679 published applications in this corpus.
Search patents in F16F- Granted patents
- 779
- Published applications
- 679
- Assignees
- 335
- Inventors
- 1,317
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 12 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 15 | 0 |
| 1986 | 14 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 14 | 0 |
| 1997 | 9 | 0 |
| 1998 | 18 | 0 |
| 1999 | 16 | 0 |
| 2000 | 11 | 0 |
| 2001 | 18 | 2 |
| 2002 | 13 | 25 |
| 2003 | 19 | 13 |
| 2004 | 13 | 25 |
| 2005 | 16 | 26 |
| 2006 | 12 | 17 |
| 2007 | 8 | 13 |
| 2008 | 3 | 14 |
| 2009 | 6 | 16 |
| 2010 | 8 | 10 |
| 2011 | 5 | 11 |
| 2012 | 4 | 13 |
| 2013 | 13 | 18 |
| 2014 | 8 | 24 |
| 2015 | 22 | 28 |
| 2016 | 20 | 34 |
| 2017 | 26 | 47 |
| 2018 | 41 | 56 |
| 2019 | 40 | 44 |
| 2020 | 49 | 45 |
| 2021 | 31 | 42 |
| 2022 | 42 | 41 |
| 2023 | 36 | 29 |
| 2024 | 28 | 39 |
| 2025 | 23 | 26 |
| 2026 | 26 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16F 9/362Combination of sealing and guide arrangements for piston rods267
- F16F 9/368Sealings in pistons176
- F16F 9/369Sealings for elements other than pistons or piston rods103
- F16F 9/366Functioning as guide only63
- F16F 9/365The sealing arrangement having a pressurised chamber separated from the damping medium40
- F16F 9/361Sealings of the bellows-type17
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