- All sections
- E - Fixed constructions
- E03B - Installations or methods for obtaining, collecting, or distributing water
- E03B 3/40 - Other devices for confining, e.g. trenches, drainage
Patent holdings for IPC class E03B 3/40
Total number of patents in this class: 7
10-year publication summary
|
2
|
2
|
3
|
1
|
0
|
0
|
0
|
0
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20113 |
1 |
| Beijing Rechsand Science & Technology Group Co., Ltd. | 36 |
1 |
| Bluefield Holdings, Inc. | 4 |
1 |
| Dresser-Rand Company | 208 |
1 |
| Elwha LLC | 355 |
1 |
| Skorm Sp. z o.o. | 1 |
1 |
| CTW Innovations Limited | 2 |
1 |
| Other owners | 0 |