- All sections
- B - Performing operationstransporting
- B29L - Indexing scheme associated with subclass , relating to particular articles
- B29L 31/26 - Sealing devices, e.g. packaging for pistons or pipe joints
Patent holdings for IPC class B29L 31/26
Total number of patents in this class: 303
10-year publication summary
|
50
|
46
|
37
|
27
|
27
|
18
|
12
|
17
|
15
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2224 |
28 |
| The Boeing Company | 20098 |
11 |
| Sumitomo Rubber Industries, Ltd. | 4657 |
7 |
| Hilti Aktiengesellschaft | 3500 |
7 |
| CQLT SaarGummi Technologies S.à.r.l. | 68 |
7 |
| Halliburton Energy Services, Inc. | 20949 |
6 |
| S & B Technical Products, Inc. | 88 |
6 |
| Stefan Pfaff Werkzeug-und Formenbau GmbH & Co KG | 10 |
5 |
| Kureha Corporation | 1032 |
4 |
| Oxford NanoPore Technologies Limited | 272 |
4 |
| Sika Technology AG | 2870 |
4 |
| Vacuworx Global, LLC | 36 |
4 |
| Zephyros, Inc. | 655 |
4 |
| Covidien LP | 10646 |
3 |
| Ford Global Technologies, LLC | 20676 |
3 |
| Toyoda Gosei Co., Ltd. | 1784 |
3 |
| Avery Dennison Corporation | 1185 |
3 |
| ElringKlinger AG | 541 |
3 |
| ElringKlinger Kunststofftechnik GmbH | 25 |
3 |
| Henniges Automotive Sealing Systems North America, Inc. | 29 |
3 |
| Other owners | 185 |