Portfolio comparison
George B. Selden vs Northrop Grumman Systems
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 549160· 1895
George Selden's 1895 Patent for a Road Engine
Activity by Decade
1890s1
Company B
Northrop Grumman Systems
Patents indexed
1
Year range
2018
Most recent
2018
aerospacedefensesoftwaretelecommunicationsrobotics
Top Patents1 enriched
US 10107627· 2018
How Vehicles and Drones Find Their Way Using Many Sensors
Activity by Decade
2010s1
How to use
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