DG

David Ryan Groen

📍 Guelph, CA: #245 of 736 inventorsTop 35%
Overall (All Time): #1,925,054 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10870028 Sprinkler system with a pre-action sprinkler head Randal John Bird 2020-12-22
9993675 Pre-action sprinkler head Randal John Bird 2018-06-12