F15B 21/10
Delay devices or arrangements
F15B21/10 (Delay devices or arrangements) appears on 56 US grants and 45 published applications in this corpus.
Search patents in F15B- Granted patents
- 56
- Published applications
- 45
- Assignees
- 36
- Inventors
- 91
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 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 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 5 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 2 | 0 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 0 | 4 |
| 2021 | 4 | 3 |
| 2022 | 5 | 6 |
| 2023 | 3 | 4 |
| 2024 | 6 | 4 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for synchronized valve actuation28 Jul 2026US 12,693,691 B2Swagelok Company
- Method for diagnosing a state of deterioration of an uplock26 May 2026US 12,637,204 B2Safran Landing Systems
- Systems and methods for control and monitoring of actuated valves18 Nov 2025US 12,474,228 B2Swagelok Company
- Valve driving with mechanical delay14 Oct 2025US 12,442,465 B2Petroleo Brasileiro S.A. - Petrobras
- Fluid valve20 May 2025US 12,305,765 B2Nabtesco Corporation
- Systems and methods for control and monitoring of actuated valves19 Mar 2026US 2026/0079063 A1Swagelok Company
- Method for diagnosing a state of deterioration of an uplock29 May 2025US 2025/0171135 A1Safran Landing Systems
- Electric working machine9 Jan 2025US 2025/0012050 A1Kubota Corporation
- Systems and methods for synchronized valve actuation7 Nov 2024US 2024/0370042 A1Swagelok Company
- Universal Logic Circuit for Electro-Hydraulic Actuator19 Sep 2024US 2024/0309965 A1Emerson Process Management Valve Automation, Inc.
Most cited
By later US patents
- Pneumatic circuit for strapping tool having adjustable tension control42US 5,853,524 AIllinois Tool Works Inc. · 1998
- Time-out indicator for pneumatic strapper41US 6,732,638 B1Illinois Tool Works Inc. · 2004
- Method for controlling pressure in a hydraulic actuator25US 9,670,943 B2Parker-Hannifin Corporation · 2017
- Rotary snubber for linear actuator13US 4,098,597 AEmhart Industries, Inc. · 1978
- Fluid operated timer for a plurality of reservoirs11US 6,070,610 AExpo Safety Systems Limited · 2000