HS

Howard Sprouse

📍 Bellevue, WA: #3,435 of 6,950 inventorsTop 50%
🗺 Washington: #35,300 of 76,902 inventorsTop 50%
Overall (All Time): #1,920,652 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10807881 Water treatment apparatus Erick McWayne 2020-10-20
10125034 Permeable reactive weir Erick McWayne 2018-11-13