Robert S. Willard

SP Sparton: 1 patents #27 of 62Top 45%

📍 Denver, CO: #2,551 of 4,554 inventorsTop 60%

🗺 Colorado: #24,093 of 40,980 inventorsTop 60%

Overall (All Time): #4,072,583 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4338978	Lead chloride battery plate	John L. Devitt, Douglas E. Johnson	1982-07-13