- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 36/00 - Filter circuits or combinations of filters with other separating devices
Patent holdings for IPC class B01D 36/00
Total number of patents in this class: 847
10-year publication summary
|
79
|
80
|
88
|
71
|
101
|
89
|
73
|
65
|
43
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
101 |
| Cummins Filtration IP, Inc. | 812 |
53 |
| Caterpillar Inc. | 8877 |
47 |
| MAHLE International GmbH | 2670 |
47 |
| Ufi Filters S.p.A. | 196 |
31 |
| Donaldson Company, Inc. | 1513 |
23 |
| HYDAC Filtertechnik GmbH | 294 |
23 |
| Omachron Intellectual Property Inc. | 869 |
14 |
| Baldwin Filters, Inc. | 257 |
12 |
| Yamashin-filter Corp. | 115 |
12 |
| Hengst SE | 126 |
11 |
| Robert Bosch GmbH | 40953 |
9 |
| Cummins Filtration Inc. | 171 |
9 |
| Sartorius Stedim Biotech GmbH | 774 |
8 |
| Sun Patent Trust | 1972 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
6 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
6 |
| Tokyo Electron Limited | 11599 |
5 |
| Hamilton Sundstrand Corporation | 4525 |
5 |
| Davco Technology, LLC | 35 |
5 |
| Other owners | 413 |