F15B 2211/615
Filtering means
F15B2211/615 (Filtering means) appears on 218 US grants and 175 published applications in this corpus.
Search patents in F15B- Granted patents
- 218
- Published applications
- 175
- Assignees
- 147
- Inventors
- 497
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 5 |
| 2003 | 2 | 5 |
| 2004 | 5 | 9 |
| 2005 | 6 | 6 |
| 2006 | 2 | 6 |
| 2007 | 4 | 7 |
| 2008 | 5 | 3 |
| 2009 | 6 | 4 |
| 2010 | 5 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 4 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 5 | 6 |
| 2017 | 5 | 3 |
| 2018 | 6 | 14 |
| 2019 | 7 | 12 |
| 2020 | 15 | 12 |
| 2021 | 15 | 12 |
| 2022 | 9 | 19 |
| 2023 | 15 | 9 |
| 2024 | 8 | 11 |
| 2025 | 13 | 9 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic system having a conditioning circuit4 Aug 2026US 12,698,788 B2Robert Bosch GmbH
- Hydrostatic transaxle17 Mar 2026US 12,578,008 B2Kanzaki Kokyukoki Mfg.Co., Ltd.
- Servovalve10 Mar 2026US 12,571,413 B2Hamilton Sundstrand Corporation
- Modification of aircraft for parabolic flight17 Feb 2026US 12,552,518 B2MU-G Technologies, LLC
- Oil filter device3 Feb 2026US 12,539,474 B2Komatsu Ltd.
- Pneumatic automation device, maintenance assembly, pneumatic system, and method17 Sep 2026US 2026/0276012 A1Festo AG & Co.
- Systems for detection of bypass valve actuation using pressure data13 Aug 2026US 2026/0233130 A1Donaldson Company, Inc.
- Integrated Electrohydraulic Actuator30 Jul 2026US 2026/0218734 A1Parker-Hannifin Corporation
- Hydraulic System having a Conditioning Circuit25 Jun 2026US 2026/0177085 A1Robert Bosch GmbH
- Electro-Hydraulic Actuator Assembly with a Fluid Access Port11 Jun 2026US 2026/0160279 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Pneumo-hydraulic converter for energy storage76US 6,145,311 A2000
- Pneumatic-hydraulic actuator system74US 4,335,867 A1982
- Variable flow hydraulic system73US 6,029,445 ACase Corporation · 2000
- Hydraulic system for supplying hydraulic fluid to a hydraulically operated device alternately at pressures of different value71US 4,142,368 AWelko Industriale S.p.A. · 1979
- Hydraulic system65US 7,827,787 B2Deere & Company · 2010