Portfolio comparison
John L. Mason vs TLD EUROPE
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 22186· 1858
John Mason's 1858 Patent for the Mason Jar Lid
Activity by Decade
1850s1
Top Patents1 enriched
US 11932418· 2024
How Airport Vehicles Automatically Park Safely Next to Airplanes
Activity by Decade
2020s1
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