Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RD

Robert DiGirolamo — 1 Patent

Springfield, PA: #99 of 190 inventorsTop 55%
Pennsylvania: #43,533 of 74,527 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Robert DiGirolamo has been granted 1 US patent. All of these patents were granted in 1989. Robert DiGirolamo ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Robert DiGirolamo in Springfield, PA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4856318 Surface resiliency tester Paul Hogan, Evan Sanders 1989-08-15