MR

Marshall V. Ruble

IU Iowa State University: 2 patents #368 of 1,643Top 25%
📍 Kelley, IA: #4 of 7 inventorsTop 60%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,343,705 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4688653 Method for determining body weight of a newborn calf — 1987-08-25
4678893 Method and means for determining the ease with which a cow may give birth to a calf — 1987-07-07