- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
Patent holdings for IPC class F16J 15/12
Total number of patents in this class: 578
10-year publication summary
|
69
|
45
|
47
|
51
|
33
|
47
|
23
|
20
|
32
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2210 |
82 |
| Oiles Corporation | 511 |
34 |
| The Patent Well, LLC | 52 |
14 |
| ElringKlinger AG | 533 |
12 |
| Nippon Pillar Packing Co., Ltd. | 255 |
12 |
| Flexitallic Investments, Inc. | 90 |
11 |
| Nichias Corporation | 390 |
11 |
| Federal-Mogul Corporation | 316 |
8 |
| Reinz-Dichtungs-GmbH | 274 |
8 |
| Teadit N.A., Inc., AKA Teadit North America | 27 |
8 |
| kuk IL Inntot Co., Ltd. | 14 |
7 |
| GPT Industries, LLC | 35 |
7 |
| Schlumberger Technology Corporation | 10627 |
6 |
| Carl Freudenberg KG | 1367 |
6 |
| General Electric Technology GmbH | 1456 |
6 |
| Uchiyama Manufacturing Corp. | 125 |
6 |
| Valqua, Ltd. | 275 |
6 |
| Dana Automotive Systems Group, LLC | 429 |
5 |
| Schul International Co., LLC | 81 |
5 |
| Technetics Group LLC | 38 |
5 |
| Other owners | 319 |