WP

William A. Pratt

AM AMD: 2 patents #3,994 of 9,279Top 45%
Overall (All Time): #2,201,320 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6623569 Duplex stainless steels David S. Bergstrom, John J. Dunn, John F. Grubb 2003-09-23
6551420 Duplex stainless steel David S. Bergstrom, John J. Dunn, John F. Grubb 2003-04-22