Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Richard E. Spring — 1 Patent

Caterpillar: 1 patents #4,457 of 8,398Top 55%
Nashville, IL: #182 of 324 inventorsTop 60%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Richard E. Spring has been granted 1 US patent while listed as an inventor at Caterpillar. All of these patents were granted in 1992. Richard E. Spring ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Richard E. Spring in Nashville, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5109696 Powertrain performance assessment system Irving Bright, Ronald C. Erickson, Dennis K. Greene, Gerald D. Hardy, Robert Hefner +2 more 1992-05-05 $18,077,000