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USPTO Patent Rankings Data through Dec 31, 2025
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Itzhak Wulkan — 3 Patents

CMCall Manage: 2 patents #2 of 4Top 50%
NONovelsat: 1 patents #5 of 10Top 50%
Raanana, IL: #323 of 1,034 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Itzhak Wulkan has been granted 3 US patents while listed as an inventor at Call Manage. The first was granted in 1999 and the most recent in November 2018. Itzhak Wulkan ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Itzhak Wulkan in Raanana, IL.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10135518 Echo cancellation in communication transceivers Daniel Wajcer, Avihay Sadeh Shirazi, Dan Peleg, Yuval Shalom 2018-11-20
5991384 Apparatus for facilitating the making of a calling card telephone call 1999-11-23
5862203 Telecommunications call management system Gideon Barak 1999-01-19