Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John Drewry — 6 Patents

Cisco: 4 patents #3,400 of 13,007Top 30%
CRCrative: 2 patents #12 of 46Top 30%
Los Altos, CA: #1,400 of 3,651 inventorsTop 40%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
John Drewry has been granted 6 US patents while listed as an inventor at Cisco. The first was granted in 2011 and the most recent in January 2019. John Drewry ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John Drewry in Los Altos, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10182318 Integration of enterprise voicemail in mobile systems Saurav Chatterjee, Paul Fullarton, Josh Perfetto, Hermendra Rana 2019-01-15 $52,930,000
8644484 System and method for active mobile collaboration Paul R. Fulton, Andre M. Nakaso, Michael Adrian White, Steven Schramm, Saurav Chatterjee 2014-02-04 $24,151,000
8638910 Integration of enterprise voicemail in mobile systems Saurav Chatterjee, Paul Fullarton, Josh Perfetto, Hemendra Rana 2014-01-28 $23,551,000
8041020 System and method for active mobile collaboration Michael Adrian White, Steven Schramm, Saurav Chatterjee, Paul R. Fulton, Andre M. Nakaso 2011-10-18 $22,947,000
7974391 Conversation-based user interface Steven Schramm, Mike White, Kate Withey 2011-07-05
7940910 Directory integration in mobile systems Saurav Chatterjee, Hemendra Rana, Steven Schramm 2011-05-10