DH

David D. Hearn

CO Conocophillips: 3 patents #6 of 122Top 5%
📍 Houston, TX: #224 of 2,587 inventorsTop 9%
🗺 Texas: #1,728 of 16,704 inventorsTop 15%
Overall (2024): #89,866 of 561,600Top 20%
3
Patents 2024

Issued Patents 2024

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12152461 Through tubing P AND A with bismuth alloys Dan Mueller, Geir Ove Titlestad, Curtis G. Blount, Rick D. Watts, Randall S. Shafer +1 more 2024-11-26
12129735 Tool for metal plugging or sealing of casing Casey Hirschmann, Randall S. Shafer, Stewart M. Robertson, Dan Mueller 2024-10-29
12010970 Nano-thermite well plug Casey Hirschmann, Randall S. Shafer 2024-06-18