JH

John D. Holdcraft

RA Rolls-Royce North America: 1 patents #30 of 92Top 35%
Rolls-Royce Plc: 1 patents #45 of 119Top 40%
📍 Carmel, IN: #90 of 234 inventorsTop 40%
🗺 Indiana: #1,232 of 3,552 inventorsTop 35%
Overall (2017): #368,757 of 506,227Top 75%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9551299 Check valve for propulsive engine combustion chamber James C. Loebig, Christopher D. DeBruhl 2017-01-24