Inventor · disambiguated record
Sigurd Eirik Sperbund
Also filed as: SPERBUND SIGURD EIRIK
4 granted patents·1 pending application·0 citations·filing 2021–2025
57Inventor score
Top patents by PatentIndex Score
5 records- 0178US12116861B2Methods and systems for rotating a casing to ensure efficient displacement of cement slurryNESA ENERGY LLC·Filed 2023·Granted Oct 15, 2024·0 cites·8 claims
- 0273US12359529B2Methods and systems for rotating a casing to ensure efficient displacement of cement slurryNESA ENERGY LLC·Filed 2024·Granted Jul 15, 2025·0 cites·11 claims
- 0365US11891876B2Methods and systems for rotating a casing to ensure efficient displacement of cement slurryRANTON HOLDING LLC·Filed 2023·Granted Feb 6, 2024·0 cites·18 claims
- 0459US11598176B2Methods and systems for rotating a casing to ensure efficient displacement of cement slurryRANTON HOLDING LLC·Filed 2021·Granted Mar 7, 2023·0 cites·9 claims
- 0557US2025354453A1Methods and systems for rotating a casing to ensure efficient displacement of cement slurryNESA ENERGY LLC·Filed 2025·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →