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European patent · EP4384691 · In force
Register entry
- Publication number
- EP4384691
- Application number
- EP22890939
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- In force
- Specification
- Granted
- Filed
- Aug 10, 2022
- Published
- Jun 19, 2024
- Granted
- Sep 23, 2026
- Protection ends at the latest
- Aug 9, 2042
- Next annual fee due
- Aug 31, 2027
- IPC classes
- E21B 47/18 (2012.01)E21B 47/01 (2012.01)E21B 17/02 (2006.01)E21B 7/15 (2006.01)E21B 41/00 (2006.01)
- Priority
- US 202117453626 04.11.2021
- PCT application
- PCT/US2022/074755 10.08.2022
- PCT publication
- WO2023/081545 11.05.2023
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Sep 23, 2026
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 23.09.2026
Parties
Holder
Inventor
FINKE, Michael D.
Houston, Texas 77032-3219, US
WIECEK, Boguslaw
Houston, Texas 77032-3219, US
MOENY, William M.
New Mexico 87004, 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.