Portfolio comparison
International Standard Electric Corp vs Northrop Grumman Systems Corp
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
International Standard Electric Corp
Patents indexed
2
Year range
1941 – 1949
Most recent
1949
telecommunicationssemiconductorsenergymechanical
Top Patents2 enriched
US 2266401· 1941
How Pulse Code Modulation Digitizes Analog Signals
US 2485586· 1949
How the Geiger Counter Detects Invisible Radiation
Activity by Decade
1940s2
Company B
Northrop Grumman Systems Corp
Patents indexed
2
Year range
2021 – 2023
Most recent
2023
aerospacemechanicaltelecommunications
Top Patents2 enriched
US 11685554· 2023
How Spacecraft Servicing Pods Maneuver and Refuel Other Satellites
US 11124318· 2021
How a Host Spacecraft Refuels Another Satellite Without Using Its Fuel Tank
Activity by Decade
2020s2
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