- All sections
- C - Chemistry; metallurgy
- C09D - Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor
- C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Patent holdings for IPC class C09D 129/04
Total number of patents in this class: 614
10-year publication summary
|
67
|
59
|
63
|
58
|
50
|
47
|
48
|
65
|
60
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kuraray Co., Ltd. | 3392 |
52 |
| Hewlett-Packard Development Company, L.P. | 28538 |
18 |
| Xerox Corporation | 7503 |
12 |
| Sumitomo Chemical Company, Limited | 8808 |
12 |
| Mitsubishi Chemical Corporation | 4313 |
12 |
| Stora Enso Oyj | 1504 |
10 |
| Sun Chemical Corporation | 865 |
10 |
| Nippon Paint Surf Chemicals Co., Ltd. | 82 |
9 |
| Toppan Printing Co., Ltd. | 2212 |
9 |
| FUJIFILM Corporation | 27102 |
8 |
| Mayr-Melnhof Karton Aktiengesellschaft | 209 |
7 |
| Nihon Parkerizing Co., Ltd. | 274 |
7 |
| The Nippon Synthetic Chemical Industry Co., Ltd. | 314 |
7 |
| Omya International AG | 816 |
7 |
| LG Chem, Ltd. | 17205 |
6 |
| Ricoh Company, Ltd. | 13266 |
6 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 354 |
6 |
| Michelman, Inc. | 120 |
6 |
| Sun Chemical B.V. | 351 |
6 |
| Nitto Denko Corporation | 7879 |
5 |
| Other owners | 399 |