% Expired Patents = 100.0

EPO Patents = 4

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

Svein Ellingsrud (1 out of 19 patents)

Hans Roger Jensen (1 out of 1 patent)

Geir Bjarte Havsgard (1 out of 1 patent)

4. Audun Sodal (1 out of 3 patents)

5. Frank Agnar Maao (1 out of 1 patent)

6. Tor Schaug-Pettersen (4 patents)

7. Terje Eidesmo (16 patents)

8. Hans Magne Pedersen (1 patent)

9. Havard Ramsfjell (0 patent)

3 patents: Sort by Forward Citations

1. 9097816 - Apparatus for detecting low frequency electromagnetic field responses from a subsurface environment (2015-08-04),

2. 8913463 - Positioning system (2014-12-16),

3. 8712693 - Method for enhanced subsurface electromagnetic sensitivity (2014-04-29),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#37 in Trondheim

#526 in Norway

Trondheim, Norway

Electromagnetic Geoservices Asa

Forward Citations = 0

5 inventors:

Svein Ellingsrud (1 out of 19 patents)

Hans Roger Jensen (1 out of 1 patent)

Geir Bjarte Havsgard (1 out of 1 patent)

4. Audun Sodal (1 out of 3 patents)

5. Frank Agnar Maao (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Electromagnetic Geoservices Asa. Retrieved from https://idiyas.com/company/electromagnetic-geoservices-asa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

4 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]