Portfolio comparison
Burton Parsons and Co Inc vs Northrop Grumman Systems
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Burton Parsons and Co Inc
Patents indexed
1
Year range
1976
Most recent
1976
biotechpharmaceutical
Top Patents1 enriched
US 3987163· 1976
How Polystyrene Sulfonate Helps Treat Dry Eye Symptoms
Activity by Decade
1970s1
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
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