Portfolio comparison
Brunswick Corp vs Guglielmo Marconi
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 3378274· 1968
How the Snurfer Invented Modern Snowboarding
Activity by Decade
1960s1
Top Patents1 enriched
US 586193· 1897
How Marconi Patented Early Wireless Telegraphy Signals
Activity by Decade
1890s1
How to use
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