- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/085 - Funnel filtersHolders therefor
Patent holdings for IPC class B01D 29/085
Total number of patents in this class: 95
10-year publication summary
|
7
|
4
|
7
|
12
|
3
|
17
|
11
|
8
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sartorius Stedim Biotech GmbH | 824 |
5 |
| Cummins Filtration IP, Inc. | 809 |
3 |
| Graco Minnesota Inc. | 1179 |
3 |
| Nypro Inc. | 93 |
3 |
| Progressive International Corporation | 247 |
3 |
| University Hospitals of North Midlands National Health Service Trust | 3 |
3 |
| Merck Patent GmbH | 5840 |
2 |
| Bayer AG | 3295 |
2 |
| Innovive, Inc. | 49 |
2 |
| Louis M. Gerson Co., Inc. | 37 |
2 |
| Mott Corporation | 68 |
2 |
| Saudi Arabian Oil Company | 12833 |
2 |
| Arun Co., Ltd. | 7 |
2 |
| Cloud Water Filter, LLC | 7 |
2 |
| Tangshan Harbin Ship Technology Co., Ltd. | 204 |
2 |
| Tangshan Hydrience Marine Technology Co., Ltd. | 149 |
2 |
| Schlumberger Technology Corporation | 10608 |
1 |
| Schlumberger Canada Limited | 7222 |
1 |
| Schlumberger Technology B.v. | 5145 |
1 |
| Pratt & Whitney Canada Corp. | 4533 |
1 |
| Other owners | 51 |