BS

Brian Douglas Spreen

📍 Stony Plain, CA: #1 of 2 inventorsTop 50%
Overall (2023): #499,149 of 537,848Top 95%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11752811 Tire pressure control valve assembly Lesley Joseph Hinz 2023-09-12