- All sections
- C - Chemistry; metallurgy
- C08J - Working-up; general processes of compounding; after-treatment not covered by subclasses , , , or
- C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
Patent holdings for IPC class C08J 9/04
Total number of patents in this class: 816
10-year publication summary
|
57
|
58
|
55
|
59
|
55
|
83
|
52
|
69
|
42
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sekisui Chemical Co., Ltd. | 3159 |
35 |
| Evonik Operations GmbH | 3879 |
25 |
| Dow Global Technologies LLC | 10147 |
24 |
| Sekisui Plastics Co., Ltd. | 345 |
20 |
| BASF SE | 19740 |
19 |
| Nitto Denko Corporation | 7879 |
19 |
| Kaneka Corporation | 4445 |
19 |
| LG Chem, Ltd. | 17205 |
18 |
| Honeywell International Inc. | 13799 |
15 |
| Kyoraku Co., Ltd. | 485 |
15 |
| ExxonMobil Chemical Patents Inc. | 4286 |
12 |
| Mitsui Chemicals, Inc. | 3134 |
11 |
| Toyobo Co., Ltd. | 2286 |
11 |
| Bayer MaterialScience LLC | 178 |
10 |
| Prime Polymer Co., Ltd. | 179 |
10 |
| JSR Corporation | 2476 |
8 |
| U.S. Bank National Association | 728 |
8 |
| The Procter & Gamble Company | 22178 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
7 |
| Bridgestone Corporation | 7067 |
7 |
| Other owners | 516 |