Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert L. Hedman — 2 Patents

IBM: 2 patents #32,909 of 70,183Top 50%
Rochester, MN: #1,591 of 3,042 inventorsTop 55%
Minnesota: #24,068 of 52,454 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert L. Hedman has been granted 2 US patents while listed as an inventor at IBM. The first was granted in 1987 and the most recent in May 1996. Robert L. Hedman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert L. Hedman in Rochester, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5517040 Personalizable semiconductor chips for analog and analog/digital circuits Gordon G. Koehler, Karl L. Ladin, John T. Trnka 1996-05-14 $11,662,000
4698599 Differential summing amplifier for inputs having large common mode signals 1987-10-06 $28,387,000