- 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: 3672
10-year publication summary
|
275
|
295
|
386
|
367
|
335
|
301
|
248
|
231
|
221
|
120
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24575 |
232 |
| Taiyo Ink Mfg. Co., Ltd. | 210 |
118 |
| LG Innotek Co., Ltd. | 7659 |
94 |
| FUJIFILM Corporation | 29424 |
77 |
| Taiyo Holdings Co., Ltd. | 277 |
77 |
| Samsung Electronics Co., Ltd. | 146534 |
64 |
| Apple Inc. | 55017 |
54 |
| Tactotek Oy | 164 |
47 |
| Robert Bosch GmbH | 42677 |
45 |
| Kaneka Corporation | 4529 |
43 |
| Hitachi Chemical Company, Ltd. | 2346 |
39 |
| Sekisui Chemical Co., Ltd. | 3429 |
38 |
| Intel Corporation | 47013 |
34 |
| Samsung Electro-mechanics Co., Ltd. | 5620 |
30 |
| HZO, Inc. | 116 |
30 |
| Avary Holding (Shenzhen) Co., Limited. | 304 |
30 |
| Nitto Denko Corporation | 8246 |
26 |
| Showa Denko K.K. | 2222 |
26 |
| NingBo Sunny Opotech Co.,Ltd. | 623 |
24 |
| Sumitomo Electric Printed Circuits, Inc. | 309 |
23 |
| Other owners | 2521 |