Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Stavanger, NO ranks #2,319 worldwide for total patents filed all time, with 1,352 patents from 602 inventors. Leading employers of inventors based in Stavanger, NO include Halliburton Energy Services, Schlumberger Technology, Laerdal Medical As.

Showing 1–50 of 602 inventors

Rank Inventor Primary Company Patents
1 Gunnar Lende Halliburton Energy Services 22
2 Rune Freyer Halliburton Energy Services 20
3 Victor Aarre Schlumberger Technology 15
#4 Helge Fossan Laerdal Medical As 14
#5 Ola Tunheim Halliburton Energy Services 13
#5 Bard Martin Tinnen Altus Intervention (Technologies) As 13
#7 Roy Inge Jensen Hydra Systems As 12
#8 Anders Grinrod Schlumberger Norge As 11
#8 Helge Myklebust Laerdal Medical As 11
#8 Patrick Andersen Hydra Systems As 11
#8 Kristian Solhaug Halliburton Energy Services 11
#12 Jan Eirik Ellingsen 10
#12 Espen Dahl Halliburton Energy Services 10
#12 Espen Alhaug Reelwell As 10
#12 Wolfgang Koppe Solvay Acetow Gmbh 10
#16 Bjørgulf Haukelidsæter Eidesen Equinor Energy As 9
#16 Michael Nickel Schlumberger Technology 9
#16 Kenny Armstrong C6 Technologies As 9
#16 Gaute Grindhaug Baker Hughes Oilfield Operations 9
#16 Hallgrim Ludvigsen Schlumberger Technology 9
#16 Odd B. Skjaerseth West Drilling Products As 9
#22 Mathias Molden Laerdal Medical As 8
#22 Jan Freyer Halliburton Energy Services 8
#22 Rahul Jadhav Halliburton Energy Services 8
#22 Knut H. Nesland ExxonMobil 8
#22 Jimmy Klinger Schlumberger Technology 8
#22 Terje Baustad Roxar Flow Measurement As 8
#22 Steffen Evertsen Ardyne Holdings, Limited 8
#29 Ole Sevheim Petroleum Technology Company As 7
#29 Martin Sigmundstad Den Norske Stats Oljeselskap A.S. 7
#29 Adne Helle 7
#29 Yogesh Kumar Choudhary Halliburton Energy Services 7
#29 Lars Petter Larsen Halliburton Energy Services 7
#29 Ola Stengel Nabors Lux 2 Sarl 7
#29 Marcus Fathi Statoil Petroleum As 7
#29 Kristoffer Braekke I-Tec As 7
#29 Egil Ronaes Schlumberger Norge As 7
#29 Christopher J. Chalker Halliburton Energy Services 7
#39 Rune Kristian Knutsen Smartseal As 6
#39 Olav Martin Selle Statoil Asa 6
#39 Oystein Skudal IBM 6
#39 Ole Gustav Johannessen Echovista Gmbh 6
#39 Catherine Labes-Carrier Statoil Asa 6
#39 Arild Johannessen Calysta 6
#39 Vegard Dyrseth Halliburton Energy Services 6
#39 Bjørn Eilertsen Engineering & Drilling Machinery As 6
#39 Borje Nystrom Berol Kemi Ab 6
#39 Malcolm Andrew Kelland Clariant 6
#39 Arne Motland Qinterra Technologies As 6
#50 Frederik Clausager Vemb HANSEN Laerdal Medical As 5