- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 29/085 - Funnel filters; Holders therefor
Patent holdings for IPC class B01D 29/085
Total number of patents in this class: 90
10-year publication summary
|
10
|
7
|
4
|
7
|
12
|
3
|
16
|
11
|
7
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sartorius Stedim Biotech GmbH | 774 |
5 |
| Bayer AG | 3045 |
3 |
| Cummins Filtration IP, Inc. | 812 |
3 |
| Nypro Inc. | 88 |
3 |
| Progressive International Corporation | 257 |
3 |
| University Hospitals of North Midlands National Health Service Trust | 3 |
3 |
| Merck Patent GmbH | 5909 |
2 |
| Graco Minnesota Inc. | 1124 |
2 |
| Innovive, Inc. | 51 |
2 |
| Louis M. Gerson Co., Inc. | 39 |
2 |
| Mott Corporation | 62 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| Arun Co., Ltd. | 7 |
2 |
| Tangshan Harbin Ship Technology Co., Ltd. | 204 |
2 |
| Tangshan Hydrience Marine Technology Co., Ltd. | 149 |
2 |
| Schlumberger Technology Corporation | 9690 |
1 |
| Schlumberger Canada Limited | 6913 |
1 |
| Schlumberger Technology B.v. | 4951 |
1 |
| Pratt & Whitney Canada Corp. | 4215 |
1 |
| Panasonic Electric Works Co., Ltd. | 782 |
1 |
| Other owners | 47 |