PHOTOMETRISCHER FLAMMENDETEKTOR
European patent · EP4153973 · In force
Register entry
- Publication number
- EP4153973
- Application number
- EP21808323
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- In force
- Specification
- Granted
- Filed
- May 20, 2021
- Published
- Mar 29, 2023
- Granted
- May 6, 2026
- Protection ends at the latest
- May 19, 2041
- Next annual fee due
- May 31, 2026
- IPC classes
- G01N 21/72 (2006.01)G01N 30/68 (2006.01)
- Priority
- US 202016881296 22.05.2020
- PCT application
- PCT/US2021/033343 20.05.2021
- PCT publication
- WO2021/236898 25.11.2021
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Jun 10, 2026
Agent entered
- Representative
- Felber & Partner AG, Dufourstrasse 116, 8008 Zürich
Published in Swissreg on 10.06.2026
- May 6, 2026
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 06.05.2026
Parties
Inventor
ZHANG, Edward
Cypress, Texas 77429, US
WATKINS, Willis
Cypress, Texas 77433, US
BLACK, Steven S.
Houston, Texas 77077, US
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.