- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 63/26 - 1,4-Benzenedicarboxylic acid
Patent holdings for IPC class C07C 63/26
Total number of patents in this class: 349
10-year publication summary
25
|
14
|
17
|
18
|
10
|
13
|
14
|
12
|
16
|
7
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Eastman Chemical Company | 2239 |
55 |
Uop LLC | 4083 |
19 |
Grupo Petrotemex, S.A. de C.V. | 72 |
17 |
BP Corporation North America Inc. | 776 |
16 |
INVISTA Technologies S.a.r.l. | 450 |
16 |
Mitsubishi Gas Chemical Company, Inc. | 3188 |
10 |
SABIC Global Technologies B.V. | 4044 |
9 |
Tianhua Institute of Chemical Machinery and Automation Co., Ltd. | 37 |
9 |
Mitsubishi Chemical Corporation | 4313 |
8 |
Hitachi Plant Technologies, Ltd. | 67 |
7 |
LG Chem, Ltd. | 17205 |
6 |
Boreskov Institute of Catalysis | 24 |
6 |
INEOS US Chemicals Company | 32 |
6 |
China Petroleum & Chemical Corporation | 1623 |
5 |
Nitto Denko Corporation | 7879 |
4 |
China National Petroleum Corporation | 245 |
4 |
Mizushima Aroma Company, Ltd. | 5 |
4 |
Shanghai Research Institute of Petrochemical Technology Sinopec | 252 |
4 |
Toyobo Co., Ltd. | 2286 |
4 |
China Textile Industrial Engineering Institute | 7 |
4 |
Other owners | 136 |