F16K 3/312
Line blinds
F16K3/312 (Line blinds) appears on 57 US grants and 48 published applications in this corpus.
Search patents in F16K- Granted patents
- 57
- Published applications
- 48
- Assignees
- 50
- Inventors
- 111
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 3 |
| 2018 | 5 | 3 |
| 2019 | 1 | 1 |
| 2020 | 3 | 5 |
| 2021 | 3 | 4 |
| 2022 | 7 | 6 |
| 2023 | 5 | 8 |
| 2024 | 6 | 3 |
| 2025 | 5 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-crop valve for agricultural inter-cropping22 Sep 2026US 12,740,502 B2101288550 Saskatchewan Ltd.
- Valve for a rocket engine28 Jul 2026US 12,692,949 B2Arianegroup SAS
- Blast gate capable of preventing gate-dropping30 Dec 2025US 12,510,166 B1
- Gate valve24 Jun 2025US 12,338,908 B2Kennedy Valve Company
- Spectacle blind swinging devices and related methods29 Apr 2025US 12,287,040 B2Saudi Arabian Oil Company
- Large-diameter in-line seal comprising a sealing plate10 Sep 2026US 2026/0266380 A1Onis
- Automatic shut off valve20 Aug 2026US 2026/0243352 A1Enerco Group, Inc.
- Multi-crop valve for agricultural inter-cropping11 Dec 2025US 2025/0374851 A1101288550 Saskatchewan Ltd.
- Valve for a rocket engine1 May 2025US 2025/0137535 A1Arianegroup SAS
- Method of opening fluid control valve and fluid control valve used for the same29 Aug 2024US 2024/0288077 A1Cosmo Koki Co., Ltd.
Most cited
By later US patents
- Gate-type, side-ported, line blind valve45US 5,464,035 AITT Corporation · 1995
- Method and apparatus for blinding non-energy sources33US 9,982,788 B1Marathon Petroleum Company LP · 2018
- Coke drum bottom throttling valve and system26US 6,843,889 B2Curtiss-Wright Flow Control Corporation · 2005
- Vacuum tube shut-off for power tools23US 5,524,663 AUnique Systems, Inc. · 1996
- Packingless gate valve and actuator assemblies20US 4,007,911 AThe J. R. Clarkson Company · 1977