F16K 41/026
For rotating valves
Official title: {for rotating valves}
F16K41/026 (For rotating valves) appears on 75 US grants and 58 published applications in this corpus.
Search patents in F16K- Granted patents
- 75
- Published applications
- 58
- Assignees
- 59
- Inventors
- 159
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 3 |
| 2014 | 3 | 0 |
| 2015 | 0 | 3 |
| 2016 | 5 | 4 |
| 2017 | 1 | 1 |
| 2018 | 3 | 4 |
| 2019 | 4 | 6 |
| 2020 | 5 | 4 |
| 2021 | 5 | 6 |
| 2022 | 7 | 4 |
| 2023 | 3 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Control valves with adjustable valve packing14 Apr 2026US 12,601,423 B2Fisher Controls International LLC
- Top entry valve for severe industrial applications17 Jun 2025US 12,331,848 B2Velan Inc.
- A valve with a spring30 Jul 2026US 2026/0218811 A1Valmet Flow Control Oy
- Repairable valve25 Jun 2026US 2026/0177150 A1Mogas Industries, Inc.
- Detachable and lubricable packing gland for electric large-caliber butterfly valve21 May 2026US 2026/0139614 A1Huaneng Qinbei Power Generation Co., Ltd.
- Valve and sealing structure thereof13 Nov 2025US 2025/0347359 A1
- Control valves with adjustable valve packing12 Jun 2025US 2025/0189058 A1Fisher Controls International LLC
Most cited
By later US patents
- Valve stem sealing means for prevention of fugitive emissions54US 5,178,363 AM&FC Holding, LLC · 1993
- Valve stem sealing means for prevention of fugitive emissions50US 5,129,624 AM&FC Holding, LLC · 1992
- Retrofit second packing chamber for quarter-turn valves46US 5,476,117 A1995
- Valve arrangement adaptable to meet different leakage requirements42US 5,979,491 AXomox International GmbH & Co. · 1999
- Valve stem packing assembly38US 4,538,790 AWhitey Co. · 1985