David Nelsen

CO Conoco: 2 patents #177 of 638Top 30%

📍 Ponca City, OK: #200 of 444 inventorsTop 50%

🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%

Overall (All Time): #2,248,226 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5891310	Delayed coking cycle time reduction	—	1999-04-06
5804038	Reduction of metal stresses in delayed coking drums	—	1998-09-08