Portfolio comparison
Sperry Gyroscope Co Inc vs Data Tech Services Inc
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
Data Tech Services Inc
Patents indexed
1
Year range
1991
Most recent
1991
mechanicalconsumer_electronics
Top Patents1 enriched
US 5013088· 1991
How Tamper-Proof Labels That Break Into Pieces Work
Activity by Decade
1990s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.