DR

Daniel G. Roper

📍 Lucas, TX: #8 of 21 inventorsTop 40%
🗺 Texas: #2,607 of 15,389 inventorsTop 20%
Overall (2017): #159,155 of 506,227Top 35%
2
Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9739381 Mechanically retained valve seat Michel Bouvry, Daniel Coestesquis, Harold J. McKinney 2017-08-22
9664303 Valve sound reducing trim assembly with pressure relief mechanism James Lyman Griffin, Jr., Matthew W. Hanusa, Thomas L. Weyer, Harold J. McKinney 2017-05-30