E21C 25/64
Slitting machines guided solely by hand and either carried by hand or
Official title: Slitting machines guided solely by hand and either carried by hand or mounted on supports (hand-held power-operated tools E21C37/22)
E21C25/64 (Slitting machines guided solely by hand and either carried by hand or) appears on 3 US grants and 3 published applications in this corpus.
Search patents in E21C- Granted patents
- 3
- Published applications
- 3
- Assignees
- 1
- Inventors
- 8
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- High power laser tunneling mining and construction equipment and methods of use25 Aug 2026US 12,715,063 B2Foro Energy, Inc.
- High power laser tunneling mining and construction equipment and methods of use28 Feb 2023US 11,590,606 B2Foro Energy, Inc.
- High power laser tunneling mining and construction equipment and methods of use5 Feb 2019US 10,195,687 B2Foro Energy, Inc.
- High power laser tunneling mining and construction equipment and methods of use12 Oct 2023US 2023/0321749 A1Foro Energy, Inc.
- High power laser tunneling mining and construction equipment and methods of use8 Aug 2019US 2019/0240770 A1Foro Energy, Inc.
- High power laser tunneling mining and construction equipment and methods of use21 Aug 2014US 2014/0231398 A1Foro Energy, Inc.
Most cited
By later US patents