- 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: 177
10-year publication summary
|
9
|
17
|
14
|
11
|
21
|
10
|
8
|
19
|
12
|
10
|
| 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 | 15933 |
6 |
| Government of The United States AS represented by The Administrator of The U.S. Environmental Protection Agency | 13 |
5 |
| Kanaflex Corporation | 19 |
4 |
| Urbanalta Corp | 4 |
4 |
| Stormharvester IPR Limited | 6 |
4 |
| Sewer Alarm, Inc. | 5 |
4 |
| SDB IP Holdings, LLC | 116 |
3 |
| Shonan Gosei-Jushi Seisakusho K.K. | 38 |
3 |
| NJS Co.,Ltd. | 22 |
3 |
| Acsl Ltd. | 36 |
3 |
| British Telecommunications Public Limited Company | 2600 |
2 |
| Ashimori Engineering Co., Ltd. | 5 |
2 |
| Ashimori Industry Co., Ltd. | 263 |
2 |
| Frankische Rohrwerke Gebr. Kirchner GmbH & Co. KG | 71 |
2 |
| iPEK International GmbH | 56 |
2 |
| Legend Energy Advisors, LLC | 16 |
2 |
| RSA Protective Technologies, LLC | 20 |
2 |
| Seescan, Inc. | 573 |
2 |
| South East Water Corporation | 48 |
2 |
| Takiron Co., Ltd. | 14 |
2 |
| Other owners | 118 |