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USPTO Patent Rankings Data through Dec 31, 2025
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Stefan Zschiegner — 2 Patents

FOFormfactor: 1 patents #105 of 177Top 60%
HP: 1 patents #11,359 of 7,018Top 165%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Stefan Zschiegner has been granted 2 US patents while listed as an inventor at Formfactor. The first was granted in 1997 and the most recent in February 2011. Stefan Zschiegner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Stefan Zschiegner in Eppelheim, CA, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7893700 Configuration of shared tester channels to avoid electrical connections across die area boundary on a wafer Michael W. Huebner 2011-02-22 $2,854,000
5654971 Electronic circuit or board tester and method of testing an electronic device Winfried Heitele 1997-08-05 $41,401,000