CD

Christopher L. Drenth

BI Bly Ip: 3 patents #1 of 9Top 15%
Overall (2021): #88,125 of 548,734Top 20%
3
Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11162316 Reverse-circulation drilling assemblies and methods of using same Anthony Lachance 2021-11-02
10934786 Drill string components resistant to jamming Keith William Littlely 2021-03-02
10907413 Continuous sampling drill bit Robert Andrew Corona 2021-02-02