BG

Bruce A. Grifhorst

📍 Grand Rapids, MI: #45 of 245 inventorsTop 20%
🗺 Michigan: #1,884 of 10,373 inventorsTop 20%
Overall (2020): #189,091 of 565,922Top 35%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10801211 Heated wheelchair ramp system Eric Smith 2020-10-13
10588813 Assist apparatus and system 2020-03-17