DIFFUSORANORDNUNG
European patent · EP4146905 · In force
Register entry
- Publication number
- EP4146905
- Application number
- EP21803842
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- In force
- Specification
- Granted
- Filed
- May 11, 2021
- Published
- Mar 15, 2023
- Granted
- Jun 4, 2025
- Protection ends at the latest
- May 10, 2041
- Next annual fee due
- May 31, 2026
- IPC classes
- E21B 21/00 (2006.01)E21B 31/00 (2006.01)E21B 37/04 (2006.01)
- Priority
- US 202016871501 11.05.2020
- PCT application
- PCT/US2021/031724 11.05.2021
- PCT publication
- WO2021/231389 18.11.2021
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Apr 16, 2026
Change
Published in Swissreg on 16.04.2026
- Jun 4, 2025
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 04.06.2025
Parties
Inventor
ROMERO, Cambre Allen
Broussard, LA 70518, US
ROMERO, Clayton Allen
Broussard, LA 70518, 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.