- 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: 2298
10-year publication summary
|
245
|
252
|
199
|
200
|
182
|
195
|
97
|
145
|
133
|
84
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 58742 |
56 |
| Samsung Display Co., Ltd. | 38627 |
55 |
| Samsung Electronics Co., Ltd. | 157719 |
47 |
| Canon Inc. | 43817 |
47 |
| LG Energy Solution, Ltd. | 18906 |
41 |
| Tactotek Oy | 162 |
25 |
| Toray Industries, Inc. | 7113 |
21 |
| NingBo Sunny Opotech Co.,Ltd. | 663 |
21 |
| International Business Machines Corporation | 62634 |
20 |
| Toyota Motor Corporation | 35772 |
20 |
| Robert Bosch GmbH | 44160 |
19 |
| Belkin International, Inc. | 315 |
18 |
| Denso Corporation | 25534 |
17 |
| 3m Innovative Properties Company | 17478 |
15 |
| Boe Technology Group Co., Ltd. | 44029 |
15 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48302 |
14 |
| Kioxia Corporation | 10815 |
14 |
| NOK Corporation | 2299 |
13 |
| Towa Corporation | 328 |
13 |
| Envision AESC Japan Ltd. | 271 |
13 |
| Other owners | 1794 |