- All sections
- B - Performing operationstransporting
- B29L - Indexing scheme associated with subclass , relating to particular articles
- B29L 31/14 - Filters, sieves or screens
Patent holdings for IPC class B29L 31/14
Total number of patents in this class: 190
10-year publication summary
|
22
|
12
|
14
|
16
|
15
|
5
|
8
|
8
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1798 |
11 |
| Enplas Corporation | 882 |
5 |
| Fibracast Ltd. | 29 |
5 |
| Kolon Industries, Inc. | 1760 |
5 |
| KT & G Corporation | 2968 |
5 |
| Parkson Corporation | 125 |
5 |
| British American Tobacco (Investments) Limited | 1004 |
4 |
| 3m Innovative Properties Company | 17509 |
3 |
| EMD Millipore Corporation | 633 |
3 |
| Formlabs, Inc. | 219 |
3 |
| Gambro Lundia AB | 1352 |
3 |
| HYDAC Filtertechnik GmbH | 288 |
3 |
| Moldex-Metric, Inc. | 135 |
3 |
| Rhodia Acetow GmbH | 31 |
3 |
| Sartorius Stedim Biotech GmbH | 873 |
3 |
| TEMA Technologies and Materials S.r.l. | 35 |
3 |
| Mermaid Medical Vascular ApS | 39 |
3 |
| Baker Hughes Incorporated | 5041 |
2 |
| Robert Bosch GmbH | 43631 |
2 |
| W. L. Gore & Associates, Inc. | 2700 |
2 |
| Other owners | 114 |