Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert H. Erhardt — 1 Patent

Delphi Technologies: 1 patents #2,130 of 4,124Top 55%
Shelby, MI: #17 of 27 inventorsTop 65%
Michigan: #50,030 of 86,293 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Robert H. Erhardt has been granted 1 US patent while listed as an inventor at Delphi Technologies. All of these patents were granted in 2005. Robert H. Erhardt ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Robert H. Erhardt in Shelby, MI, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6874234 Process for forming steel roller bearings William D. Bauman, David W. Koetsier 2005-04-05 $800,000