F15B 2201/305
Without separating means
Official title: without separating means
F15B2201/305 (Without separating means) appears on 25 US grants and 18 published applications in this corpus.
Search patents in F15B- Granted patents
- 25
- Published applications
- 18
- Assignees
- 15
- Inventors
- 45
- Latest grant
- 24 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 4 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic pumping system with piston displacement sensing and control24 Aug 2021US 11,098,708 B2Weatherford Technology Holdings, LLC
- Slant mounted hydraulic pumping system1 Sep 2020US 10,760,388 B2Weatherford Technology Holdings, LLC
- Hydraulic pumping system with detection of fluid in gas volume14 Apr 2020US 10,619,464 B2Weatherford Technology Holdings, LLC
- Hydraulic pumping system with enhanced piston rod sealing27 Feb 2018US 9,903,187 B2Amfields, LP
- Composite pulsation dampener4 Jul 2017US 9,695,970 B2Performance Pulsation Control, Inc.
- Energy Storage and Control System for Pipeline Flow Control12 Feb 2026US 2026/0043422 A1
- Hydraulic pumping system with piston displacement sensing and control4 Nov 2021US 2021/0340972 A1Amfields, LP
- Slant mounted hydraulic pumping system9 Feb 2017US 2017/0037713 A1Weatherford Technology Holdings, LLC
- Hydraulic pumping system with piston displacement sensing and control9 Feb 2017US 2017/0037714 A1Weatherford Technology Holdings, LLC
- Hydraulic pumping system with detection of fluid in gas volume9 Feb 2017US 2017/0037715 A1Weatherford Technology Holdings, LLC
Most cited
By later US patents
- Actuation system with fluid transmission for interaction control and high force haptics25US 7,284,374 B2Massachusetts Institute of Technology · 2007
- Accumulator with preclosing preventer15US 4,301,827 AKoomey, Inc. · 1981
- Accumulator with float orienting means12US 4,294,288 AKoomey, Inc. · 1981
- Float system for accumulator9US 4,823,827 A1989
- Pressure fluid reservoir for a vehicle hydraulic brake system8US 6,247,763 B1Robert Bosch GmbH · 2001