- All sections
- H - Electricity
- H05K - Printed circuitscasings or constructional details of electric apparatusmanufacture of assemblages of electrical components
- H05K 3/28 - Applying non-metallic protective coatings
Patent holdings for IPC class H05K 3/28
Total number of patents in this class: 3679
10-year publication summary
|
273
|
290
|
385
|
364
|
331
|
298
|
247
|
229
|
221
|
134
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24684 |
233 |
| Taiyo Ink Mfg. Co., Ltd. | 210 |
118 |
| LG Innotek Co., Ltd. | 7708 |
95 |
| FUJIFILM Corporation | 29506 |
77 |
| Taiyo Holdings Co., Ltd. | 280 |
77 |
| Samsung Electronics Co., Ltd. | 147334 |
64 |
| Apple Inc. | 55345 |
54 |
| Tactotek Oy | 164 |
47 |
| Robert Bosch GmbH | 42784 |
45 |
| Kaneka Corporation | 4561 |
43 |
| Hitachi Chemical Company, Ltd. | 2342 |
39 |
| Sekisui Chemical Co., Ltd. | 3440 |
38 |
| Intel Corporation | 47093 |
34 |
| Samsung Electro-mechanics Co., Ltd. | 5644 |
30 |
| HZO, Inc. | 116 |
30 |
| Avary Holding (Shenzhen) Co., Limited. | 304 |
30 |
| Nitto Denko Corporation | 8273 |
26 |
| Showa Denko K.K. | 2207 |
26 |
| Resonac Corporation | 2859 |
26 |
| NingBo Sunny Opotech Co.,Ltd. | 629 |
24 |
| Other owners | 2523 |