- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 19/38 - Polymers, e.g. polyamides
Patent holdings for IPC class C09K 19/38
Total number of patents in this class: 1424
10-year publication summary
95
|
106
|
114
|
133
|
119
|
116
|
72
|
84
|
78
|
21
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
DIC Corporation | 3597 |
201 |
FUJIFILM Corporation | 27102 |
171 |
JNC Corporation | 1527 |
95 |
JNC Petrochemical Corporation | 425 |
95 |
Ticona LLC | 547 |
79 |
Merck Patent GmbH | 5909 |
60 |
Sumitomo Chemical Company, Limited | 8808 |
50 |
Zeon Corporation | 3854 |
48 |
LG Chem, Ltd. | 17205 |
37 |
Nissan Chemical Industries, Ltd. | 1822 |
24 |
SICPA Holding SA | 881 |
15 |
Transitions Optical, Inc. | 317 |
14 |
Asahi Glass Company, Limited | 2985 |
12 |
Rolic AG | 76 |
12 |
University of Hyogo | 94 |
12 |
Nissan Chemical Corporation | 1725 |
12 |
Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
11 |
Crysoptix KK | 38 |
11 |
Adeka Corporation | 1333 |
10 |
Sharp Kabushiki Kaisha | 18957 |
10 |
Other owners | 445 |