DH

Denton E. Hewgill

Overall (All Time): #3,956,122 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4759759 Bubble heart valve David K. Walker, Richard T. Brownlee, Lawrence N. Scotten, Roberto Racca 1988-07-26