Portfolio comparison
James L. Plimpton vs Lockheed Martin Corp
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
James L. Plimpton
Patents indexed
1
Year range
1863
Most recent
1863
mechanicalconsumer_electronics
Top Patents1 enriched
US 37305· 1863
How James Plimpton Invented the Modern Roller Skate
Activity by Decade
1860s1
Company B
Lockheed Martin Corp
Patents indexed
1
Year range
2025
Most recent
2025
telecommunicationsaerospaceconsumer_electronics
Top Patents1 enriched
US 12464567· 2025
How Satellites Sync Timing for Faster 5G Internet Connections
Activity by Decade
2020s1
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