- All sections
- B - Performing operationstransporting
- B29L - Indexing scheme associated with subclass , relating to particular articles
- B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
Patent holdings for IPC class B29L 31/34
Total number of patents in this class: 2308
10-year publication summary
|
245
|
252
|
199
|
200
|
182
|
195
|
99
|
149
|
133
|
89
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 59117 |
56 |
| Samsung Display Co., Ltd. | 38914 |
55 |
| Samsung Electronics Co., Ltd. | 158605 |
47 |
| Canon Inc. | 44134 |
47 |
| LG Energy Solution, Ltd. | 19305 |
41 |
| Tactotek Oy | 163 |
25 |
| Toray Industries, Inc. | 7143 |
21 |
| NingBo Sunny Opotech Co.,Ltd. | 665 |
21 |
| International Business Machines Corporation | 62754 |
20 |
| Toyota Motor Corporation | 35992 |
20 |
| Robert Bosch GmbH | 44252 |
19 |
| Belkin International, Inc. | 313 |
18 |
| Denso Corporation | 25676 |
17 |
| 3m Innovative Properties Company | 17459 |
15 |
| Boe Technology Group Co., Ltd. | 44484 |
15 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48629 |
14 |
| Kioxia Corporation | 10879 |
14 |
| Celgard, LLC | 312 |
13 |
| NOK Corporation | 2316 |
13 |
| Towa Corporation | 330 |
13 |
| Other owners | 1804 |