VERFAHREN ZUM ENTWURF EINES DIFFRAKTIVEN OPTISCHEN ELEMENTS, DIFFRAKTIVES OPTISCHES ELEMENT UND SYSTEM ZUM ENTWURF EINES DIFFRAKTIVEN OPTISCHEN ELEMENTS
European patent · EP4163696 · In force
Register entry
- Publication number
- EP4163696
- Application number
- EP21821895
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- In force
- Specification
- Granted
- Filed
- Jun 8, 2021
- Published
- Apr 12, 2023
- Granted
- Dec 10, 2025
- Protection ends at the latest
- Jun 7, 2041
- Next annual fee due
- Jun 30, 2026
- IPC classes
- G02B 27/00 (2006.01)G02B 5/18 (2006.01)G02B 27/42 (2006.01)
- Priority
- CN 202010518114 09.06.2020
- PCT application
- PCT/CN2021/099013 08.06.2021
- PCT publication
- WO2021/249407 16.12.2021
- Filing language
- Chinese
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Oct 21, 2026
Change
Published in Swissreg on 21.10.2026
- Dec 10, 2025
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 10.12.2025
Parties
Inventor
FENG, Hui
Jiaxing, CN
ZHAO, Hui
Jiaxing, Zhejiang 314500, 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.