- All sections
- B - Performing operations; transporting
- B32B - Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form
- B32B 23/20 - Layered products essentially comprising cellulosic plastic substances comprising esters
Patent holdings for IPC class B32B 23/20
Total number of patents in this class: 176
10-year publication summary
|
16
|
16
|
31
|
23
|
18
|
8
|
7
|
20
|
9
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
34 |
| Solutia Inc. | 410 |
18 |
| LG Chem, Ltd. | 17205 |
8 |
| Nitto Denko Corporation | 7879 |
7 |
| Konica Minolta, Inc. | 8349 |
7 |
| Dai Nippon Printing Co., Ltd. | 3891 |
7 |
| 3m Innovative Properties Company | 18406 |
6 |
| Celanese Acetate LLC | 81 |
5 |
| Samsung SDI Co., Ltd. | 6671 |
4 |
| Konica Minolta Opto, Inc. | 1179 |
4 |
| Celanese International Corporation | 879 |
4 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| Eastman Chemical Company | 2239 |
3 |
| Essilor International (compagnie Generale D'optique) | 2918 |
3 |
| Zeon Corporation | 3854 |
3 |
| Konica Minolta Advanced Layers, Inc. | 218 |
2 |
| Cargill, Incorporated | 2835 |
2 |
| Dexerials Corporation | 1826 |
2 |
| Shaw Industries Group, Inc. | 275 |
2 |
| Société des Produits Nestlé S.A. | 9672 |
1 |
| Other owners | 51 |