- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 20/14 - Diatomaceous earth
Patent holdings for IPC class B01J 20/14
Total number of patents in this class: 214
10-year publication summary
|
16
|
26
|
26
|
26
|
20
|
11
|
19
|
11
|
12
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| EP Minerals, LLC | 90 |
26 |
| Imerys USA, Inc. | 144 |
14 |
| Imerys Filtration Minerals, Inc. | 68 |
9 |
| Mitsubishi Gas Chemical Company, Inc. | 3486 |
7 |
| Sartorius Stedim Biotech GmbH | 840 |
5 |
| Daikin Industries, Ltd. | 10106 |
4 |
| Calgon Carbon Corporation | 239 |
4 |
| Imertech SAS | 228 |
4 |
| Dorai Home, Inc. | 40 |
4 |
| 3m Innovative Properties Company | 17771 |
3 |
| Church & Dwight Co., Inc. | 1882 |
3 |
| Toray Industries, Inc. | 7000 |
3 |
| ANKOM Technology Corporation | 9 |
3 |
| Argonide Corporation | 14 |
3 |
| Suzhou Micro Ceramics Heavy Metal Filter Technology Co., Ltd. | 3 |
3 |
| M Vest Water AS | 13 |
3 |
| EMD Millipore Corporation | 649 |
2 |
| Arkema Inc. | 1069 |
2 |
| China Petroleum & Chemical Corporation | 1911 |
2 |
| Clariant Catalysts (Japan) K.K. | 31 |
2 |
| Other owners | 108 |