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.

  1. Jun 10, 2026

    Agent entered

    Representative
    Felber & Partner AG, Dufourstrasse 116, 8008 Zürich

    Published in Swissreg on 10.06.2026

  2. 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.