- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/48 - Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
Patent holdings for IPC class B01D 29/48
Total number of patents in this class: 65
10-year publication summary
|
6
|
4
|
2
|
5
|
7
|
4
|
4
|
3
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baldwin Filters, Inc. | 241 |
5 |
| Lely Patent N.V. | 752 |
5 |
| HYDAC Process Technology GmbH | 92 |
4 |
| Aqseptence Group, Inc. | 85 |
3 |
| Arai Machinery Corporation | 11 |
2 |
| Fabco Industries, Inc. | 9 |
2 |
| Pentair Water Pool and Spa, Inc. | 437 |
2 |
| Total Raffinage Marketing | 153 |
2 |
| Vast Holdings, LLC | 15 |
2 |
| Xerox Corporation | 6919 |
1 |
| Caterpillar Inc. | 9852 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8475 |
1 |
| Chevron U.S.A. Inc. | 4020 |
1 |
| Weatherford Technology Holdings, LLC | 2034 |
1 |
| Aker Subsea AS | 127 |
1 |
| Aramco Services Company | 4099 |
1 |
| Bilfinger Water Technologies, Inc. | 19 |
1 |
| The Bizser Co., Ltd. | 13 |
1 |
| Donaldson Company, Inc. | 1589 |
1 |
| Fuji Filter Manufacturing Co., Ltd. | 55 |
1 |
| Other owners | 27 |