Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DJ

David Bryan Johanson — 3 Patents

LGLandmark Graphics: 3 patents #116 of 543Top 25%
Lakewood, CO: #287 of 1,100 inventorsTop 30%
Colorado: #13,156 of 40,980 inventorsTop 35%
Overall (All Time): #1,446,074 of 4,157,543Top 35%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10571602 Generating a custom reservoir from multiple compartments representing one or more geological structures Catalina Maria Luneberg, Michael David Ewing, Sammi Igarashi 2020-02-25
10186077 Creating a thickness grid for determining reserve estimates for a reservoir Michael David Ewing 2019-01-22
9489755 Determining reserve estimates for a reservoir Michael David Ewing, Catalina Maria Luneburg, Sammi Igarashi 2016-11-08