RG

Robert L. Grinstead

📍 Chisago City, MN: #10 of 53 inventorsTop 20%
🗺 Minnesota: #11,810 of 52,454 inventorsTop 25%
Overall (All Time): #775,375 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12351014 Optimized AC powered auxiliary units for medium/heavy duty configurable electric trucks William Brandt 2025-07-08
12233818 Stair system for vehicle Deepak Kapur, David Bruford, Aleyna Kapur, Roman Kapur, Ashlon Lionel Frank +5 more 2025-02-25
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
D1008878 Vehicle cab 2023-12-26
8378518 Wind power generator system, apparatus, and methods Abolfazl Khavari 2013-02-19