- All sections
- E - Fixed constructions
- E03F - Sewerscesspools
- E03F 7/00 - Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppageEmptying cesspools
Patent holdings for IPC class E03F 7/00
Total number of patents in this class: 172
10-year publication summary
|
8
|
15
|
10
|
9
|
16
|
10
|
7
|
17
|
10
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 16264 |
6 |
| Government of The United States AS represented by The Administrator of The U.S. Environmental Protection Agency | 13 |
5 |
| Kanaflex Corporation | 20 |
4 |
| Urbanalta Corp | 4 |
4 |
| Stormharvester IPR Limited | 6 |
4 |
| Sewer Alarm, Inc. | 5 |
4 |
| SDB IP Holdings, LLC | 120 |
3 |
| Shonan Gosei-Jushi Seisakusho K.K. | 38 |
3 |
| 2078095 Ontario Limited | 7 |
2 |
| Ashimori Engineering Co., Ltd. | 5 |
2 |
| Ashimori Industry Co., Ltd. | 259 |
2 |
| Frankische Rohrwerke Gebr. Kirchner GmbH & Co. KG | 72 |
2 |
| iPEK International GmbH | 51 |
2 |
| Legend Energy Advisors, LLC | 14 |
2 |
| RSA Protective Technologies, LLC | 19 |
2 |
| Seescan, Inc. | 540 |
2 |
| South East Water Corporation | 55 |
2 |
| Takiron Co., Ltd. | 17 |
2 |
| Kruger A/S | 9 |
2 |
| NJS Co.,Ltd. | 20 |
2 |
| Other owners | 115 |