- 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: 745
10-year publication summary
|
67
|
81
|
68
|
64
|
59
|
39
|
43
|
35
|
30
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kubota Corporation | 4224 |
36 |
| Mueller International, LLC | 737 |
35 |
| Victaulic Company | 624 |
28 |
| Quick Fitting Holding Company, LLC | 93 |
13 |
| Georg Fischer WAGA N.V. | 15 |
11 |
| Bridgestone Corporation | 7233 |
9 |
| SK-KAWANISHI Co., Ltd. | 13 |
9 |
| Taylor Kerr (Couplings) Limited | 19 |
9 |
| Nibco Inc. | 234 |
8 |
| United States Pipe and Foundry Company,LLC | 81 |
8 |
| Poulton Technologies Limited | 14 |
8 |
| E. Hawle Armaturenwerke GmbH | 19 |
6 |
| Ipex Technologies Inc. | 118 |
6 |
| Waterworks Technology Development Organization Co., Ltd. | 40 |
6 |
| Krausz Industries Ltd. | 62 |
6 |
| Halliburton Energy Services, Inc. | 21230 |
5 |
| Nitta Corporation | 380 |
5 |
| NORMA U.S. Holding LLC | 67 |
5 |
| S & B Technical Products, Inc. | 86 |
5 |
| Eaton Intelligent Power Limited | 6170 |
5 |
| Other owners | 522 |