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

Robert M. Irving — 1 Patent

NANaco: 1 patents #4 of 6Top 70%
Bartlett, IL: #361 of 601 inventorsTop 65%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Robert M. Irving has been granted 1 US patent while listed as an inventor at Naco. All of these patents were granted in 2002. Robert M. Irving ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Robert M. Irving in Bartlett, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6374749 Friction wedge for a railroad car truck having a replaceable wear member Scott R. Duncan, Valerian S. Skawinski 2002-04-23