Portfolio comparison
Columbia Network Security Inc vs Henry W. Seely
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Columbia Network Security Inc
Patents indexed
1
Year range
2019
Most recent
2019
consumer_electronicstelecommunicationsmechanical
Top Patents1 enriched
US 10241750· 2019
How to Trick Your Phone Into Muting Its Own Microphone
Activity by Decade
2010s1
Top Patents1 enriched
US 259054· 1882
Henry Seely's 1882 Electric Flatiron
Activity by Decade
1880s1
How to use
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