F01L 9/16
Pneumatic means
F01L9/16 (Pneumatic means) appears on 102 US grants and 86 published applications in this corpus.
Search patents in F01L- Granted patents
- 102
- Published applications
- 86
- Assignees
- 49
- Inventors
- 144
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 5 |
| 2005 | 1 | 1 |
| 2006 | 5 | 4 |
| 2007 | 0 | 3 |
| 2008 | 3 | 4 |
| 2009 | 2 | 4 |
| 2010 | 2 | 7 |
| 2011 | 2 | 0 |
| 2012 | 3 | 2 |
| 2013 | 4 | 3 |
| 2014 | 4 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 5 |
| 2017 | 2 | 7 |
| 2018 | 4 | 2 |
| 2019 | 5 | 5 |
| 2020 | 6 | 7 |
| 2021 | 4 | 6 |
| 2022 | 4 | 6 |
| 2023 | 11 | 7 |
| 2024 | 2 | 2 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic valve actuation system with controlled valve seating velocity and method therefor2 Sep 2025US 12,404,787 B2ARA4 Consulting LLC
- Compressed-air engine with integrated active chamber and active distribution with balanced valve8 Jul 2025US 12,352,171 B2Motor Development International S.A.
- Method of controlling an exhaust valve arrangement25 Mar 2025US 12,258,913 B2Volvo Truck Corporation
- Actuator and method for operating an actuator18 Jun 2024US 12,012,878 B2Freevalve AB
- Pressure fluid handling system11 Jun 2024US 12,006,851 B2Freevalve AB
- Apparatus comprising a plurality of tools each having at least one hydraulic chamber for hydraulic liquid29 Jan 2026US 2026/0028923 A1Freevalve AB
- Hydraulic Valve Actuation System with Controlled Valve Seating Velocity and Method Therefor8 Aug 2024US 2024/0263573 A1ARA4 Consulting LLC
- Method of controlling an exhaust valve arrangement2 May 2024US 2024/0141840 A1Volvo Truck Corporation
- Compressed-air engine with integrated active chamber and active distribution with balanced valve21 Dec 2023US 2023/0407747 A1Motor Development International S.A.
- Gas exchange in internal combustion engines for increased efficiency29 Jun 2023US 2023/0203981 A1
Most cited
By later US patents
- Internal combustion engine valve control device64US 5,193,495 ASouthwest Research Institute · 1993
- Highly efficient pneumatically powered hydraulically latched actuator50US 5,152,260 ANorth American Philips Corporation · 1992
- Pneumatically powered actuator with hydraulic latching49US 5,259,345 ANorth American Philips Corporation · 1993
- Pneumatic bistable electronic valve actuator44US 4,878,464 AMagnavox Government and Industrial Electronics Company · 1989
- Pneumatic actuator with permanent magnet control valve latching37US 4,852,528 AMagnavox Government and Industrial Electronics Company · 1989