B25B 27/308
Leaf springs
Official title: {leaf springs}
B25B27/308 (Leaf springs) appears on 4 US grants and 4 published applications in this corpus.
Search patents in B25B- Granted patents
- 4
- Published applications
- 4
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Tool with double leaf spring28 Apr 2026US 12,611,751 B2Snap-on Incorporated
- Tool for removal of spring clip from a nut plate assembly and associated method26 Apr 2022US 11,311,994 B2The Boeing Company
- Tool for removal of spring clip from a nut plate assembly and associated method8 Dec 2020US 10,857,657 B2The Boeing Company
- Spring spreader and method of fabrication and assembly4 Sep 2007US 7,264,225 B1
- Tool for removal of spring clip from a nut plate assembly and associated method27 May 2021US 2021/0154815 A1The Boeing Company
- Tool with double leaf spring27 Aug 2020US 2020/0269392 A1Snap-on Incorporated
- Tool for removal of spring clip from a nut plate assembly and associated method26 Dec 2019US 2019/0389044 A1The Boeing Company
- Root spring removal tool and method of removing a blade root spring8 Sep 2016US 2016/0256991 A1Mitsubishi Hitachi Power Systems Americas, Inc.
Most cited
By later US patents