E05F 3/18
Closers or openers with braking devices: with counteracting springs
Official title: with counteracting springs (double-acting springs E05F1/14)
E05F3/18 (Closers or openers with braking devices: with counteracting springs) appears on 74 US grants and 75 published applications in this corpus.
Search patents in E05F- Granted patents
- 74
- Published applications
- 75
- Assignees
- 53
- Inventors
- 121
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 1 | 3 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 5 | 3 |
| 2014 | 2 | 6 |
| 2015 | 3 | 7 |
| 2016 | 8 | 12 |
| 2017 | 8 | 5 |
| 2018 | 4 | 1 |
| 2019 | 4 | 5 |
| 2020 | 4 | 5 |
| 2021 | 8 | 6 |
| 2022 | 5 | 2 |
| 2023 | 4 | 10 |
| 2024 | 4 | 3 |
| 2025 | 7 | 1 |
| 2026 | 5 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Latch holder having automatic opening structure and an appliance with automatic opening door using latch holder2 Jan 2025US 2025/0008615 A1LG Electronics Inc.
- Hinge assembly and opening and closing device26 Dec 2024US 2024/0426151 A1Hefei Hualing Co., Ltd.
- Arrangements for closing access member, and access member systems14 Nov 2024US 2024/0376760 A1Assa Abloy AB
Most cited
By later US patents
- Door closer with buffer mechanism for a sliding door38US 8,402,606 B12013
- Door closer assembly37US 7,971,316 B2Yale Security Inc. · 2011
- Gate apparatus with springless automatic return gate31US 8,607,502 B2Carlson Pet Products, Inc. · 2013
- Soft close hinge assembly27US 9,121,211 B1Mansfield Engineered Components, Inc. · 2015
- Damper hinge18US 6,829,807 B22004