- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 63/00 - Apparatus in general for separation processes using semi-permeable membranes
Patent holdings for IPC class B01D 63/00
Total number of patents in this class: 997
10-year publication summary
|
71
|
76
|
43
|
42
|
42
|
33
|
25
|
36
|
31
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 7002 |
69 |
| Nitto Denko Corporation | 8344 |
55 |
| Kubota Corporation | 4007 |
21 |
| FUJIFILM Corporation | 29702 |
15 |
| NGK Insulators, Ltd. | 5107 |
15 |
| Uop LLC | 4247 |
13 |
| Mitsubishi Rayon Co., Ltd. | 902 |
12 |
| NOK Corporation | 2238 |
12 |
| EMD Millipore Corporation | 648 |
11 |
| Sumitomo Chemical Company, Limited | 9086 |
11 |
| Meidensha Corporation | 904 |
10 |
| LG Chem, Ltd. | 17680 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8813 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2702 |
9 |
| DIC Corporation | 3821 |
9 |
| Kolon Industries, Inc. | 1703 |
9 |
| Sumitomo Electric Industries, Ltd. | 15659 |
8 |
| Asahi Kasei Chemicals Corporation | 655 |
8 |
| Fresenius Medical Care Deutschland GmbH | 2175 |
8 |
| Evoqua Water Technologies LLC | 919 |
7 |
| Other owners | 677 |