Portfolio comparison
Sperry Gyroscope Co Inc vs Wistaria Trading Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 1242065· 1917
How Elmer Sperry Invented the Gyroscopic Compass for Ships
Activity by Decade
1910s1
Company B
Wistaria Trading Ltd
Patents indexed
1
Year range
2018
Most recent
2018
consumer_electronicstelecommunicationssoftware
Top Patents1 enriched
US 9934408· 2018
How a Local Server Decides to Save or Degrade Digital Content
Activity by Decade
2010s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.