- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 37/26 - Chisels or other cutting tools not mentioned before
Patent holdings for IPC class E21C 37/26
Total number of patents in this class: 11
10-year publication summary
|
1
|
1
|
0
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Canada Limited | 7544 |
2 |
| Komatsu Ltd. | 4662 |
2 |
| Schlumberger Technology Corporation | 11456 |
1 |
| Schlumberger Technology B.v. | 5268 |
1 |
| University of Florida Research Foundation, Inc. | 4140 |
1 |
| Mississippi State University | 170 |
1 |
| Sandvik Mining and Construction Oy | 857 |
1 |
| SANYO Special Steel Co., Ltd. | 240 |
1 |
| Services Petroliers Schlumberger | 5974 |
1 |
| Other owners | 0 |