- 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: 2099
10-year publication summary
|
246
|
245
|
252
|
198
|
199
|
180
|
176
|
77
|
126
|
85
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 55174 |
54 |
| Samsung Display Co., Ltd. | 34907 |
49 |
| Canon Inc. | 40095 |
44 |
| Samsung Electronics Co., Ltd. | 146811 |
41 |
| LG Energy Solution, Ltd. | 15119 |
35 |
| Tactotek Oy | 164 |
25 |
| Toray Industries, Inc. | 6950 |
21 |
| NingBo Sunny Opotech Co.,Ltd. | 624 |
21 |
| International Business Machines Corporation | 61305 |
20 |
| Robert Bosch GmbH | 42705 |
19 |
| Toyota Motor Corporation | 32450 |
17 |
| Denso Corporation | 24355 |
17 |
| Belkin International, Inc. | 316 |
16 |
| 3m Innovative Properties Company | 17823 |
15 |
| Boe Technology Group Co., Ltd. | 41291 |
14 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42945 |
13 |
| NOK Corporation | 2222 |
13 |
| Envision AESC Japan Ltd. | 280 |
13 |
| LG Chem, Ltd. | 17635 |
12 |
| The Boeing Company | 20084 |
11 |
| Other owners | 1629 |