E21C 25/36
Couplings for links
E21C25/36 (Couplings for links) appears on 4 US grants and 5 published applications in this corpus.
Search patents in E21C- Granted patents
- 4
- Published applications
- 5
- Assignees
- 4
- Inventors
- 4
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year.
Subgroups
Granted patents
Recent patents
- Forklift hydraulic motor based industrial driver apparatus27 May 2025US 12,313,096 B2One Pass Innovators, LLC
- Chain connector9 Apr 2024US 11,953,077 B2Advanced Chain Technologies (A.C.T.) PTY LTD
- Mining pin retention system19 Dec 2023US 11,846,187 B2ITR America, LLC
- Mining pin retention system20 Apr 2021US 10,982,540 B2ITR America, LLC
- Forklift hydraulic motor based industrial driver apparatus23 Jun 2022US 2022/0196041 A1One Pass Innovators, LLC
- Chain Connector7 May 2020US 2020/0141473 A1Acteuro Limited
- Mining pin retention system28 Feb 2019US 2019/0063217 A1ITR America, LLC
- Mining pin retention system15 Dec 2016US 2016/0362978 A1ITR America, LLC
- Cutting link for mining chain and mining pin retention system4 Feb 2016US 2016/0032722 A1ITR America, LLC
Most cited
By later US patents