F15B 2201/3151
The flexible separating means being diaphragms or membranes
Official title: the flexible separating means being diaphragms or membranes
F15B2201/3151 (The flexible separating means being diaphragms or membranes) appears on 149 US grants and 84 published applications in this corpus.
Search patents in F15B- Granted patents
- 149
- Published applications
- 84
- Assignees
- 85
- Inventors
- 249
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 3 |
| 2004 | 3 | 6 |
| 2005 | 4 | 3 |
| 2006 | 3 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 4 | 3 |
| 2014 | 1 | 4 |
| 2015 | 3 | 7 |
| 2016 | 1 | 2 |
| 2017 | 5 | 4 |
| 2018 | 1 | 4 |
| 2019 | 5 | 3 |
| 2020 | 2 | 7 |
| 2021 | 6 | 5 |
| 2022 | 3 | 4 |
| 2023 | 5 | 6 |
| 2024 | 2 | 4 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic accumulator2 Jun 2026US 12,644,473 B2Hydac Technology GmbH
- Diaphragm for a fluid storage tank17 Mar 2026US 12,576,994 B2Cam Lock Limited
- Hydraulic accumulator17 Jun 2025US 12,331,760 B2Hydac Technology GmbH
- Rock breaking machine and method for storing pressure energy10 Sep 2024US 12,083,663 B2Sandvik Mining and Construction Oy
- Three-dimensional monolithic diaphragm tank5 Mar 2024US 11,920,542 B2Moog Inc.
- Method2 Apr 2026US 2026/0092610 A1Hydac Technology GmbH
- Separator and Hydraulic Accumulator Having Such a Separator25 Dec 2025US 2025/0389283 A1Hydac Technology GmbH
- Method for checking the state of a hydraulic accumulator16 Oct 2025US 2025/0320882 A1Deere & Company
- Hydraulic Accumulator26 Sep 2024US 2024/0318669 A1Hydac Technology GmbH
- Hydraulic integrated control module, hydraulic suspension system having hydraulic integrated control module, and vehicle19 Sep 2024US 2024/0308292 A1BYD Company Limited
Most cited
By later US patents
- Suspended diaphragm88US 6,295,918 B12001
- Adaptive hydropneumatic pulsation damper52US 5,797,430 AMercedes-Benz AG · 1998
- Accumulator51US 6,789,576 B2NHK Spring Co., Ltd. · 2004
- Expansion tank diaphragm assembly50US 3,931,834 AThe Goodyear Tire & Rubber Company · 1976
- Undulated container for undulated diaphragm and diaphragm device48US 5,449,003 A1995