- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 31/049 - Protective back sheets
Patent holdings for IPC class H01L 31/049
Total number of patents in this class: 626
10-year publication summary
|
112
|
122
|
99
|
78
|
102
|
42
|
55
|
61
|
47
|
25
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Maxeon Solar Pte. Ltd. | 659 |
29 |
| FUJIFILM Corporation | 27102 |
22 |
| GAF Energy LLC | 139 |
19 |
| LG Chem, Ltd. | 17205 |
18 |
| Toray Industries, Inc. | 6652 |
16 |
| Dai Nippon Printing Co., Ltd. | 3891 |
15 |
| Tesla, Inc. | 1519 |
15 |
| Borealis AG | 2558 |
14 |
| Shangrao Xinyuan Yuedong Technology Development Co. Ltd | 238 |
12 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
11 |
| Daikin Industries, Ltd. | 9495 |
10 |
| DuPont Teijin Films U.S. Limited Partnership | 143 |
10 |
| Solaero Technologies Corp. | 210 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
8 |
| Dow Global Technologies LLC | 10147 |
8 |
| Toyo Aluminium Kabushiki Kaisha | 357 |
8 |
| Vismunda SRL | 25 |
8 |
| Endurance Solar Solutions B.V. | 17 |
8 |
| DSM IP Assets B.V. | 5856 |
7 |
| Denka Company Limited | 2189 |
7 |
| Other owners | 371 |