Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert E. Gewin — 5 Patents

ADAdtran: 2 patents #128 of 346Top 40%
CTCommunications Technology: 1 patents #18 of 31Top 60%
Huntsville, AL: #306 of 1,894 inventorsTop 20%
Alabama: #1,539 of 10,951 inventorsTop 15%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Robert E. Gewin has been granted 5 US patents while listed as an inventor at Adtran. The first was granted in 1991 and the most recent in October 2006. Robert E. Gewin ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert E. Gewin in Huntsville, AL, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7130412 Telecommunication line driver having synthesized output impedance derived from output current sensing circuit Daniel M. Joffe, Christopher J. Foran 2006-10-31 $12,955,000
5856758 Low distortion driver employing positive feedback for reducing power loss in output impedance that effectively matches the impedance of driven line Daniel M. Joffe 1999-01-05 $10,814,000
5491722 Eye pattern margin measurement and receiver stress detection device David E. Jones, Ronald W. Jackson 1996-02-13 $1,346,000
5060226 Telecommunications network test system Gary L. Aderholt 1991-10-22
5025444 Communications error detection system James L. Clayton 1991-06-18