Portfolio comparison
James L. Plimpton vs Central Glass Co Ltd
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
Central Glass Co Ltd
Patents indexed
1
Year range
2000
Most recent
2000
automotivemechanicalmaterials
Top Patents1 enriched
US 6033785· 2000
How Car Windows Use Special Coatings to Balance Privacy and Visibility
Activity by Decade
2000s1
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