RG

Robert L. Grinstead

📍 Chisago City, MN: #4 of 9 inventorsTop 45%
🗺 Minnesota: #1,271 of 7,004 inventorsTop 20%
Overall (2024): #123,432 of 561,600Top 25%
2
Patents 2024

Issued Patents 2024

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12005958 Universal chassis frame with variable rear axle positions for medium/heavy duty configurable electric trucks 2024-06-11
11951947 Stair system for vehicle Deepak Kapur, David Bruford, Aleyna Kapur, Roman Kapur 2024-04-09