- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 61/14 - Ultrafiltration; Microfiltration
Patent holdings for IPC class B01D 61/14
Total number of patents in this class: 2107
10-year publication summary
|
138
|
141
|
218
|
192
|
227
|
223
|
225
|
199
|
205
|
50
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6652 |
66 |
| EMD Millipore Corporation | 657 |
50 |
| BASF SE | 19740 |
25 |
| Kurita Water Industries Ltd. | 1110 |
25 |
| FUJIFILM Corporation | 27102 |
20 |
| Sartorius Stedim Biotech GmbH | 774 |
20 |
| The Regents of the University of California | 18943 |
19 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
18 |
| Repligen Corporation | 258 |
16 |
| Veolia Water Solutions & Technologies Support | 547 |
15 |
| Smartflow Technologies, Inc. | 52 |
14 |
| PPG Industries Ohio, Inc. | 3430 |
11 |
| BL Technologies, Inc. | 831 |
11 |
| Organo Corporation | 394 |
11 |
| Pacira Pharmaceuticals, Inc. | 85 |
11 |
| Roquette Freres | 1002 |
11 |
| Glycom A/S | 251 |
11 |
| General Electric Company | 18133 |
10 |
| Massachusetts Institute of Technology | 9795 |
10 |
| Chevron U.S.A. Inc. | 3774 |
10 |
| Other owners | 1723 |