- All sections
- E - Fixed constructions
- E02B - Hydraulic engineering
- E02B 11/00 - Drainage of soil, e.g. for agricultural purposes
Patent holdings for IPC class E02B 11/00
Total number of patents in this class: 347
10-year publication summary
|
32
|
49
|
27
|
33
|
37
|
42
|
23
|
17
|
18
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Advanced Drainage Systems, Inc. | 343 |
16 |
| Infiltrator Water Technologies, LLC | 53 |
9 |
| ACO Severin Ahlmann GmbH & Co. KG | 103 |
7 |
| Contech Engineered Solutions LLC | 278 |
7 |
| Afitex International | 27 |
6 |
| Brock USA, LLC | 57 |
6 |
| Charles J. Schafer Revocable Trust | 11 |
6 |
| Airfield Systems, L.L.C. | 7 |
5 |
| AWT IP, LLC | 12 |
5 |
| Cur-tech, LLC | 10 |
5 |
| Watershed Geosynthetics LLC | 101 |
5 |
| Rockwool A/S | 783 |
5 |
| Infiltrator Systems, Inc. | 9 |
4 |
| Shaw & Sons, Inc. | 39 |
4 |
| StormTech LLC | 5 |
4 |
| Xerxes Corporation | 18 |
4 |
| ROCKWOOL International A/S | 306 |
4 |
| RTD Enterprises | 8 |
4 |
| The United States of America as represented by the Secretary of the Navy | 2750 |
3 |
| Brentwood Industries, Inc. | 110 |
3 |
| Other owners | 235 |