FH

Frank Harold Hollister

HS Hunting Energy Services: 2 patents #1 of 5Top 20%
NC National Coupling Company: 2 patents #2 of 5Top 40%
📍 Sugar Land, TX: #20 of 384 inventorsTop 6%
🗺 Texas: #1,286 of 17,606 inventorsTop 8%
Overall (2019): #55,141 of 560,194Top 10%
4
Patents 2019

Issued Patents 2019

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10415715 Subsea BOP control system with dual-action check valve Robert E. Smith, III, Timothy Goggans 2019-09-17
10288184 Metal reinforced seal plate for pilot actuated spool valve Robert E. Smith, III, Richard R. Watson, Dane Tipton 2019-05-14
10247322 Metal reinforced seal plate for pilot actuated spool valve Robert E. Smith, III, Richard R. Watson, Dane Tipton 2019-04-02
10174857 Subsea BOP control system with dual-action check valve Robert E. Smith, III, Timothy Goggans 2019-01-08