Portfolio comparison
Columbia Network Security Inc vs William S. Burroughs
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 388116· 1888
How William Burroughs Invented the First Practical Adding Machine
Activity by Decade
1880s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.