- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 21/08 - Joints with sleeve or socket with additional locking means
Patent holdings for IPC class F16L 21/08
Total number of patents in this class: 734
10-year publication summary
|
87
|
52
|
63
|
60
|
57
|
51
|
31
|
33
|
34
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kubota Corporation | 3919 |
36 |
| Mueller International, LLC | 719 |
34 |
| Victaulic Company | 615 |
26 |
| Quick Fitting Holding Company, LLC | 94 |
14 |
| Georg Fischer WAGA N.V. | 15 |
10 |
| Bridgestone Corporation | 7235 |
9 |
| SK-KAWANISHI Co., Ltd. | 13 |
9 |
| Taylor Kerr (Couplings) Limited | 19 |
9 |
| Nibco Inc. | 232 |
8 |
| United States Pipe and Foundry Company,LLC | 81 |
8 |
| Poulton Technologies Limited | 14 |
8 |
| E. Hawle Armaturenwerke GmbH | 21 |
6 |
| Ipex Technologies Inc. | 106 |
6 |
| NORMA U.S. Holding LLC | 76 |
6 |
| Waterworks Technology Development Organization Co., Ltd. | 39 |
6 |
| Krausz Industries Ltd. | 56 |
6 |
| Halliburton Energy Services, Inc. | 20911 |
5 |
| Nitta Corporation | 373 |
5 |
| Viega Technology GmbH & Co. KG | 113 |
5 |
| Eaton Intelligent Power Limited | 5992 |
5 |
| Other owners | 513 |