F16K 1/2268
Sealing means for the axis of rotation
Official title: {Sealing means for the axis of rotation}
F16K1/2268 (Sealing means for the axis of rotation) appears on 147 US grants and 116 published applications in this corpus.
Search patents in F16K- Granted patents
- 147
- Published applications
- 116
- Assignees
- 105
- Inventors
- 346
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 6 |
| 2011 | 3 | 6 |
| 2012 | 1 | 1 |
| 2013 | 1 | 14 |
| 2014 | 4 | 7 |
| 2015 | 10 | 5 |
| 2016 | 10 | 6 |
| 2017 | 4 | 5 |
| 2018 | 4 | 10 |
| 2019 | 7 | 8 |
| 2020 | 7 | 8 |
| 2021 | 11 | 7 |
| 2022 | 7 | 3 |
| 2023 | 4 | 7 |
| 2024 | 4 | 6 |
| 2025 | 6 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Exhaust flow control valve43US 5,630,571 AGeneral Motors Corporation · 1997
- Butterfly valve39US 4,025,050 ATomoe Technical Research Company · 1977
- Multiportion unitary valve seat and valve incorporating it35US 4,215,846 AHoneywell Inc. · 1980
- Shaft bearing and seals for butterfly valves32US 4,022,424 AGeneral Electric Company · 1977
- Fugitive emission sealing assembly32US 5,244,183 AKeystone International Holdings Corp. · 1993