VIRTUELLE HOCHDICHTE BOHRLOCHVERMESSUNG
European patent · EP4103815 · In force
Register entry
- Publication number
- EP4103815
- Application number
- EP21753031
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- In force
- Specification
- Granted
- Filed
- Feb 5, 2021
- Published
- Dec 21, 2022
- Granted
- Aug 19, 2026
- Protection ends at the latest
- Feb 4, 2041
- Next annual fee due
- Feb 28, 2027
- IPC classes
- E21B 47/022 (2012.01)G01V 1/30 (2006.01)G01V 3/20 (2006.01)G06F 30/20 (2020.01)
- Priority
- US 202016790529 13.02.2020
- PCT application
- PCT/US2021/016813 05.02.2021
- PCT publication
- WO2021/162949 19.08.2021
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Aug 19, 2026
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 19.08.2026
Parties
Inventor
ZHANG, Zhengxin
Katy, Texas 77493, US
CHEN, Wei
Katy, Texas 77493, US
SHEN, Yuelin
Katy, Texas 77493, US
CHEN, Zhenyu
Beijing 100084, 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.