- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 71/16 - Cellulose acetate
Patent holdings for IPC class B01D 71/16
Total number of patents in this class: 194
10-year publication summary
28
|
8
|
16
|
14
|
20
|
11
|
17
|
17
|
22
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Toray Industries, Inc. | 6652 |
15 |
Toyobo Co., Ltd. | 2286 |
15 |
FUJIFILM Corporation | 27102 |
8 |
FUJIFILM Manufacturing Europe B.V. | 271 |
8 |
Sartorius Stedim Biotech GmbH | 774 |
6 |
Saudi Arabian Oil Company | 11322 |
6 |
Beijing Baoshengtong International Electric Engineering Technology Co., Ltd. | 4 |
4 |
Board of Regents, The University of Texas System | 5370 |
3 |
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 297 |
3 |
China Petroleum & Chemical Corporation | 1623 |
3 |
Daicen Membrane-systems Ltd. | 16 |
3 |
Kurita Water Industries Ltd. | 1110 |
3 |
Kyoeisha Chemical Co., Ltd. | 77 |
3 |
National University Corporation Kobe University | 460 |
3 |
National University of Singapore | 2228 |
3 |
LG Chem, Ltd. | 17205 |
2 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
Bayer HealthCare LLC | 1415 |
2 |
Hitachi, Ltd. | 16452 |
2 |
Uop LLC | 4083 |
2 |
Other owners | 98 |