- All sections
- C - Chemistry; metallurgy
- C08J - Working-up; general processes of compounding; after-treatment not covered by subclasses , , , or
- C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
Patent holdings for IPC class C08J 9/28
Total number of patents in this class: 1470
10-year publication summary
|
124
|
103
|
151
|
126
|
136
|
127
|
124
|
131
|
79
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6652 |
61 |
| Nitto Denko Corporation | 7879 |
42 |
| BASF SE | 19740 |
36 |
| Aspen Aerogels, Inc. | 217 |
36 |
| Blueshift Materials, Inc. | 74 |
30 |
| 3m Innovative Properties Company | 18406 |
29 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
26 |
| FUJIFILM Corporation | 27102 |
24 |
| Toray Battery Separator Film Co., Ltd. | 59 |
24 |
| LG Chem, Ltd. | 17205 |
21 |
| Eastman Kodak Company | 3444 |
20 |
| Hitachi Chemical Company, Ltd. | 2455 |
17 |
| The Procter & Gamble Company | 22178 |
14 |
| Centre National de La Recherche Scientifique | 9632 |
13 |
| Aerogel Technologies, LLC | 26 |
12 |
| Daikin Industries, Ltd. | 9495 |
11 |
| Kaneka Corporation | 4445 |
11 |
| Technion Research & Development Foundation Ltd. | 1167 |
11 |
| Sumitomo Chemical Company, Limited | 8808 |
10 |
| PPG Industries Ohio, Inc. | 3430 |
10 |
| Other owners | 1012 |