- All sections
- E - Fixed constructions
- E03F - Sewerscesspools
- E03F 3/00 - Sewer pipe-line systems
Patent holdings for IPC class E03F 3/00
Total number of patents in this class: 41
10-year publication summary
|
6
|
3
|
6
|
1
|
3
|
1
|
4
|
1
|
2
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aiwell Holding AS | 7 |
3 |
| Essential Water LLC | 4 |
2 |
| Gulf Coast Underground, LLC | 6 |
2 |
| Kubota Corporation | 4388 |
2 |
| Dow Global Technologies LLC | 10930 |
1 |
| ABT Foam, LLC | 4 |
1 |
| ADS LLC | 41 |
1 |
| Contech Engineering Solutions LLC | 1 |
1 |
| Frankische Rohrwerke Gebr. Kirchner GmbH & Co. KG | 71 |
1 |
| Huahan Science & Technology Co., Ltd. | 16 |
1 |
| iPEK International GmbH | 55 |
1 |
| LMK Technologies, LLC | 99 |
1 |
| Presby Patent Trust | 8 |
1 |
| Sanexen Environmental Services Inc. | 27 |
1 |
| Sekisui Chemical Co., Ltd. | 3606 |
1 |
| Tohoku University | 2970 |
1 |
| Uhrig Kanaltechnik GmbH | 10 |
1 |
| Veolia Eau - Compagnie Generale des Eaux | 27 |
1 |
| Xylem Water Solutions Zelienople LLC | 82 |
1 |
| KB Technology Co., Ltd. | 4 |
1 |
| Other owners | 16 |