F16K 41/00
Spindle sealings
F16K41/00 (Spindle sealings) appears on 1,122 US grants and 839 published applications in this corpus.
Search patents in F16K- Granted patents
- 1,122
- Published applications
- 839
- Assignees
- 609
- Inventors
- 2,006
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 12 | 0 |
| 1978 | 8 | 0 |
| 1979 | 11 | 0 |
| 1980 | 16 | 0 |
| 1981 | 16 | 0 |
| 1982 | 19 | 0 |
| 1983 | 14 | 0 |
| 1984 | 17 | 0 |
| 1985 | 29 | 0 |
| 1986 | 15 | 0 |
| 1987 | 17 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 13 | 0 |
| 1991 | 17 | 0 |
| 1992 | 21 | 0 |
| 1993 | 26 | 0 |
| 1994 | 18 | 0 |
| 1995 | 18 | 0 |
| 1996 | 15 | 0 |
| 1997 | 28 | 0 |
| 1998 | 27 | 0 |
| 1999 | 25 | 0 |
| 2000 | 23 | 0 |
| 2001 | 17 | 11 |
| 2002 | 15 | 16 |
| 2003 | 21 | 19 |
| 2004 | 13 | 21 |
| 2005 | 17 | 31 |
| 2006 | 17 | 21 |
| 2007 | 9 | 26 |
| 2008 | 12 | 25 |
| 2009 | 15 | 17 |
| 2010 | 13 | 20 |
| 2011 | 11 | 23 |
| 2012 | 14 | 22 |
| 2013 | 17 | 25 |
| 2014 | 29 | 42 |
| 2015 | 25 | 38 |
| 2016 | 40 | 29 |
| 2017 | 30 | 36 |
| 2018 | 27 | 40 |
| 2019 | 41 | 52 |
| 2020 | 35 | 46 |
| 2021 | 44 | 51 |
| 2022 | 48 | 43 |
| 2023 | 48 | 54 |
| 2024 | 48 | 50 |
| 2025 | 46 | 51 |
| 2026 | 30 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16K 41/10Spindle sealings: with diaphragm507
- F16K 41/02Spindle sealings: with stuffing-box505
- F16K 41/003Spindle sealings: by fluid40
- F16K 41/14Spindle sealings: with conical flange on the spindle which co-operates with a35
- F16K 41/16Spindle sealings: with a flange on the spindle which rests on a30
- F16K 41/006Spindle sealings: by establishing an under-pressure5
Recent patents
- High-pressure fluid on/off valve and components and method of use of same29 Sep 2026US 12,747,803 B2Flow International Corporation
- Connector structure of stepless capacity control actuator of reciprocating compressor22 Sep 2026US 12,742,451 B2Beijing University of Chemical Technology
- Solenoid valve8 Sep 2026US 12,729,777 B2Buerkert Werke GmbH
- Packing system of a valve assembly25 Aug 2026US 12,716,521 B2Fisher Controls International LLC
- Vibration reducing device25 Aug 2026US 12,716,522 B2FMC Technologies, Inc.
- Variable control orifice valve24 Sep 2026US 2026/0287065 A1Compart Systems Pte. Ltd.
- Improvements in, or relating to valves and methods therefor24 Sep 2026US 2026/0287081 A1
- Movable diaphragm bidirectional noise reduction cannister vent solenoid (cvs) valve27 Aug 2026US 2026/0251108 A1
- Sealing a cage guided valve20 Aug 2026US 2026/0243369 A1Dresser, Inc.
- Compact valve for cryogen media with conditioning system30 Jul 2026US 2026/0218798 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Corrosion control for chamber components372US 10,190,701 B2APPLIED Materials.Inc. · 2019
- Disposable ambulatory microprocessor controlled volumetric pump249US 5,807,075 ASarcos Corp. · 1998
- Cooling control system and expansion valve therefor118US 4,506,518 APacific Industrial Co., Ltd. · 1985
- Safety shut-off valve98US 3,958,592 AWillis Oil Tool Co. · 1976
- Fluid valves85US 4,280,680 A1981