F15B 2201/215
Using weights
Official title: using weights
F15B2201/215 (Using weights) appears on 13 US grants and 14 published applications in this corpus.
Search patents in F15B- Granted patents
- 13
- Published applications
- 14
- Assignees
- 11
- Inventors
- 23
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Device, system and method for isothermal compression, constant-pressure power generation and physical energy storage16 Dec 2025US 12,497,941 B2Northwestern Polytechnical University
- Electric energy storage in the form of underground gravity and buoyant energy4 Nov 2025US 12,460,771 B2Energy Future, Inc.
- Bootstrap hydraulic reservoir16 Feb 2021US 10,920,795 B2The Boeing Company
- Thermal hydraulic propulsion system6 Oct 2020US 10,794,370 B2A & A International, LLC
- Water hammer arrester15 May 2018US 9,970,583 B2Ayrlett, Inc.
- Device, system and method for isothermal compression, constant-pressure power generation and physical energy storage15 Aug 2024US 2024/0271590 A1Northwestern Polytechnical University
- Electric energy storage in the form of underground gravity and buoyant energy23 May 2024US 2024/0167627 A1Energy Future, Inc.
- Thermal hydraulic propulsion system1 Apr 2021US 2021/0095644 A1A & A International, LLC
- Bootstrap hydraulic reservoir28 May 2020US 2020/0166055 A1The Boeing Company
- Thermal hydraulic propulsion system11 Jul 2019US 2019/0211809 A1A & A International, LLC
Most cited
By later US patents
- Accumulator43US 4,858,898 ANHK Spring Co., Ltd. · 1989
- Pulsation attenuator for a fluidic system26US 7,328,722 B2Accuri Cytometers, Inc. · 2008
- Pulsation attenuator for a fluidic system20US 7,857,005 B2Accuri Cytometers, Inc. · 2010
- Pulsation attenuator for a fluidic system19US 7,520,300 B2Accuri Cytometers, Inc. · 2009
- Thermal hydraulic propulsion system5US 10,794,370 B2A & A International, LLC · 2020