E06C 5/22
By, or with the assistance of, springs
Official title: by, or with the assistance of, springs (E06C5/06, E06C5/16 take precedence)
E06C5/22 (By, or with the assistance of, springs) appears on 6 US grants and 6 published applications in this corpus.
Search patents in E06C- Granted patents
- 6
- Published applications
- 6
- Assignees
- 6
- Inventors
- 15
- Latest grant
- 6 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year.
Recent patents
- Railroad freight car access fittings6 Aug 2024US 12,054,182 B2National Steel Car Limited
- Railroad freight car access fittings23 Jun 2020US 10,689,012 B2National Steel Car Limited
- Swing type access system for an earth mover9 Jun 2020US 10,676,896 B2Barjoh Pty Ltd
- Access ladder assembly for a movable machine2 Apr 2019US 10,246,940 B1Caterpillar Paving Products Inc.
- Access ladder assembly for a movable machine31 Jul 2018US 10,036,201 B1Caterpillar Paving Products Inc.
- Railroad freight car access fittings3 Sep 2020US 2020/0276992 A1National Steel Car Limited
- Railroad freight car access fittings15 Nov 2018US 2018/0327002 A1National Steel Car Limited
- Swing Type Access System for an Earth Mover25 Aug 2016US 2016/0244944 A1Barjoh Pty Ltd
- Manually powered linkage ladder30 Oct 2014US 2014/0318892 A1Caterpillar Inc.
- Ladder Assembly for a Work Vehicle12 Jun 2014US 2014/0158465 A1CNH America LLC
Most cited
By later US patents
- Ladder assembly for a work vehicle7US 8,827,038 B2CNH Industrial America LLC · 2014
- Access ladder assembly for a movable machine4US 10,036,201 B1Caterpillar Paving Products Inc. · 2018
- Access ladder assembly for a movable machine2US 10,246,940 B1Caterpillar Paving Products Inc. · 2019
- Swing type access system for an earth mover1US 10,676,896 B2Barjoh Pty Ltd · 2020