- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 20/14 - Diatomaceous earth
Patent holdings for IPC class B01J 20/14
Total number of patents in this class: 202
10-year publication summary
18
|
16
|
28
|
27
|
27
|
21
|
11
|
19
|
11
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
EP Minerals, LLC | 97 |
28 |
Imerys USA, Inc. | 135 |
14 |
Imerys Filtration Minerals, Inc. | 64 |
9 |
Mitsubishi Gas Chemical Company, Inc. | 3188 |
6 |
Sartorius Stedim Biotech GmbH | 774 |
5 |
Church & Dwight Co., Inc. | 1845 |
4 |
Daikin Industries, Ltd. | 9495 |
4 |
Imertech SAS | 224 |
4 |
3m Innovative Properties Company | 18406 |
3 |
ANKOM Technology Corporation | 9 |
3 |
Argonide Corporation | 14 |
3 |
Calgon Carbon Corporation | 224 |
3 |
Suzhou Micro Ceramics Heavy Metal Filter Technology Co., Ltd. | 3 |
3 |
M Vest Water AS | 13 |
3 |
Dorai Home, Inc. | 28 |
3 |
EMD Millipore Corporation | 657 |
2 |
Toray Industries, Inc. | 6652 |
2 |
Arkema Inc. | 1075 |
2 |
China Petroleum & Chemical Corporation | 1623 |
2 |
Clariant Catalysts (Japan) K.K. | 28 |
2 |
Other owners | 97 |