DRUCKFILTER
European patent · EP4171780 · In force
Register entry
- Publication number
- EP4171780
- Application number
- EP20942619
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- In force
- Specification
- Granted
- Filed
- Jun 30, 2020
- Published
- May 3, 2023
- Granted
- Jul 30, 2025
- Protection ends at the latest
- Jun 29, 2040
- Next annual fee due
- Jun 30, 2026
- IPC classes
- B01D 25/19 (2006.01)B01D 25/172 (2006.01)B01D 25/21 (2006.01)G01B 7/04 (2006.01)G01B 11/04 (2006.01)G01B 21/06 (2006.01)G01B 13/04 (2006.01)
- PCT application
- PCT/CN2020/099329 30.06.2020
- PCT publication
- WO2022/000278 06.01.2022
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Jun 11, 2026
Change
Published in Swissreg on 11.06.2026
- Jul 30, 2025
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 30.07.2025
Parties
Inventor
LI, Zhihong
Shanghai 201201, CN
FOSTER, Geoffrey
Suzhou, Jiangsu 215021, CN
GE, Linlin
Nantong, Jiangsu 226004, CN
YAN, Huan
Shanghai 201209, CN
The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.