RN

Roy N. Nelson

BH Baker Hughes Holdings: 3 patents #995 of 3,522Top 30%
BC Baker Hughes, A Ge Company: 1 patents #709 of 1,459Top 50%
📍 Houston, TX: #5,364 of 21,073 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,199,757 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9828829 Intermediate completion assembly for isolating lower completion Raymond A. Frisby, Jeffrey S. Phillips, Donald P. Lauderdale 2017-11-28
9027651 Barrier valve system and method of closing same by withdrawing upper completion Raymond A. Frisby, Jeffrey S. Phillips, Donald P. Lauderdale 2015-05-12
9016372 Method for single trip fluid isolation Raymond A. Frisby, Jeffrey S. Phillips, Donald P. Lauderdale 2015-04-28
9016389 Retrofit barrier valve system Raymond A. Frisby, Jeffrey S. Phillips, Donald P. Lauderdale 2015-04-28