F16K 41/08
With at least one ring provided with axially-protruding peripheral closing-lip
Official title: with at least one ring provided with axially-protruding peripheral closing-lip
F16K41/08 (With at least one ring provided with axially-protruding peripheral closing-lip) appears on 37 US grants and 43 published applications in this corpus.
Search patents in F16K- Granted patents
- 37
- Published applications
- 43
- Assignees
- 33
- Inventors
- 87
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 4 |
| 2015 | 1 | 4 |
| 2016 | 3 | 3 |
| 2017 | 2 | 1 |
| 2018 | 5 | 4 |
| 2019 | 3 | 1 |
| 2020 | 0 | 5 |
| 2021 | 6 | 3 |
| 2022 | 1 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connector structure of stepless capacity control actuator of reciprocating compressor22 Sep 2026US 12,742,451 B2Beijing University of Chemical Technology
- Control valves with adjustable valve packing14 Apr 2026US 12,601,423 B2Fisher Controls International LLC
- Cryogenic fluid shut-off valve7 Apr 2026US 12,595,852 B2Engineered Controls International, LLC
- Cryogenic fluid shut-off valve7 Oct 2025US 12,435,793 B2Engineered Controls International, LLC
- Shaft sealing structure9 Sep 2025US 12,410,864 B2SMC Corporation
- Cryogenic fluid shut-off valve9 Jul 2026US 2026/0194145 A1Engineered Controls International, LLC
- Connector structure of stepless capacity control actuator of reciprocating compressor7 May 2026US 2026/0126038 A1Beijing University of Chemical Technology
- Control valves with adjustable valve packing12 Jun 2025US 2025/0189058 A1Fisher Controls International LLC
- Cryogenic fluid shut-off valve16 Jan 2025US 2025/0020215 A1Engineered Controls International, LLC
- Cryogenic fluid shut-off valve2 May 2024US 2024/0142000 A1Engineered Controls International, LLC
Most cited
By later US patents
- Two-piece valve stem seal16US 6,901,902 B1Freudenberg-NOK General Partnership · 2005
- Seal, assembly, and methods of using the same12US 10,914,383 B2Saint-Gobain Performance Plastics Corporation · 2021
- Valve vented redundant stem seal system12US 9,010,725 B2Vetco Gray Inc. · 2015
- Metal valve stem and sealing system11US 7,428,912 B2Petrolvalves S.P.A. · 2008
- Gate valve arrangement including multi-valve stem and seat assemblies11US 9,759,334 B2Vetco Gray Inc. · 2017