- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Patent holdings for IPC class C08L 29/04
Total number of patents in this class: 1812
10-year publication summary
|
97
|
112
|
130
|
170
|
194
|
183
|
174
|
168
|
131
|
50
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kuraray Co., Ltd. | 3392 |
276 |
| Mitsubishi Chemical Corporation | 4313 |
109 |
| The Nippon Synthetic Chemical Industry Co., Ltd. | 314 |
105 |
| MonoSol, LLC | 226 |
45 |
| The Procter & Gamble Company | 22178 |
28 |
| Wacker Chemie AG | 2091 |
25 |
| The Yokohama Rubber Co., Ltd. | 3929 |
24 |
| LG Chem, Ltd. | 17205 |
23 |
| Sekisui Chemical Co., Ltd. | 3159 |
21 |
| Denka Company Limited | 2189 |
18 |
| Dow Global Technologies LLC | 10147 |
17 |
| Kimberly-clark Worldwide, Inc. | 5854 |
14 |
| Aicello Corporation | 82 |
13 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
13 |
| FUJIFILM Corporation | 27102 |
12 |
| BASF SE | 19740 |
11 |
| E. I. du Pont de Nemours and Company | 4345 |
11 |
| Sumitomo Chemical Company, Limited | 8808 |
11 |
| Plantic Technologies Ltd. | 48 |
11 |
| Solutia Inc. | 410 |
11 |
| Other owners | 1014 |