DB

Douglas R. Barker

UF US Air Force: 3 patents #2,296 of 16,312Top 15%
📍 Centerville, OH: #227 of 668 inventorsTop 35%
🗺 Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,651,994 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5447580 Rapid heat treatment of nonferrous metals and alloys to obtain graded microstructures Sheldon L. Semiatin 1995-09-05
4762679 Billet conditioning technique for manufacturing powder metallurgy preforms Harold L. Gegel, Yellapregada V. R. K. Prasad, Sokka M. Doraivelu, Raghavan Srinivasan, J. S. Gunasekera +4 more 1988-08-09
4617817 Optimizing hot workability and controlling microstructures in difficult to process high strength and high temperature materials Harold L. Gegel, James C. Malas, Yellapregada V. R. K. Prasad, Sokka M. Doraivelu, James T. Morgan, Jr. +1 more 1986-10-21