DH

Douglas R.S. HART

📍 Toronto, CA: #5,171 of 9,482 inventorsTop 55%
Overall (All Time): #2,782,017 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10599167 System and method for building climate control Samuel P. van BERKEL 2020-03-24