DH

David Hadfield

CP Conoco Specialty Products: 2 patents #1 of 8Top 15%
📍 Houston, TX: #87 of 987 inventorsTop 9%
🗺 Texas: #496 of 5,527 inventorsTop 9%
Overall (1994): #36,121 of 165,921Top 25%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5366641 Hydrocyclones for oil spill cleanup with oil slug monitor Mark F. Schubert 1994-11-22
5302294 Separation system employing degassing separators and hydroglyclones Mark F. Schubert 1994-04-12