RK

Ronald Gregory Klopfer

ET Etalim: 1 patents #7 of 13Top 55%
📍 North Vancouver, CA: #451 of 800 inventorsTop 60%
Overall (All Time): #2,947,497 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9664181 Thermoacoustic transducer apparatus including a transmission duct Thomas Steiner, Briac Medard de Chardon, Kristjan Gottfried 2017-05-30