PS

Patrick Richard Spearman

PM Porous Media: 1 patents #1 of 5Top 20%
📍 The Woodlands, TX: #2 of 7 inventorsTop 30%
🗺 Texas: #2,374 of 8,731 inventorsTop 30%
Overall (2004): #140,479 of 270,089Top 55%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6692639 Stacked conical filtration or separation apparatus Michael R. Spearman, Majid Zia 2004-02-17