DJ

Douglas Jahnke

PT Premium Oilfield Technologies: 2 patents #1 of 2Top 50%
📍 Houston, TX: #398 of 2,604 inventorsTop 20%
🗺 Texas: #2,850 of 16,648 inventorsTop 20%
Overall (2023): #160,389 of 537,848Top 30%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11686173 Rotary control device with self-contained hydraulic reservoir Lap Tran 2023-06-27
11614175 Self-contained hydraulically controlled relief valve — 2023-03-28