- All sections
- E - Fixed constructions
- E03B - Installations or methods for obtaining, collecting, or distributing water
- E03B 9/04 - Column hydrants
Patent holdings for IPC class E03B 9/04
Total number of patents in this class: 96
10-year publication summary
|
9
|
9
|
9
|
13
|
8
|
13
|
11
|
4
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mueller International, LLC | 737 |
42 |
| McWane, Inc. | 115 |
6 |
| Vonroll InfraTec (Investment) AG | 28 |
6 |
| Kennedy Valve Company | 38 |
5 |
| AVK Holding A/S | 97 |
5 |
| Societe Plymouth Francaise | 30 |
3 |
| Conserventi Valve LLC | 3 |
3 |
| WCM Industries, Inc. | 237 |
2 |
| Ebara Corporation | 2269 |
1 |
| American Cast Iron Pipe Company | 41 |
1 |
| B & R Plastics, Inc. | 7 |
1 |
| Chuan Wei Metal Co., Ltd. | 5 |
1 |
| City of Medicine Hat | 10 |
1 |
| Davidson Hydrant Technologies, Inc. | 5 |
1 |
| Hale Products, Inc. | 80 |
1 |
| Hydra-shield Mfg. Inc. | 5 |
1 |
| Jarola Vision B.V. | 49 |
1 |
| Merrill Manufacturing Company | 11 |
1 |
| Schirado Inventions, LLC | 2 |
1 |
| Twin Disc, Inc. | 95 |
1 |
| Other owners | 12 |