Portfolio comparison
Sonos Inc vs Theophilus Van Kannel
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Sonos Inc
Patents indexed
1
Year range
2018
Most recent
2018
consumer_electronicssoftwaretelecommunicationsai_ml
Top Patents1 enriched
US 9965247· 2018
How Sonos Speakers Use Personalized Wake Words to Recognize Different Users
Activity by Decade
2010s1
Top Patents1 enriched
US 387571· 1888
How the Revolving Door Was Invented
Activity by Decade
1880s1
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