Portfolio comparison
Digimarc Corp vs Marvin C. Stone
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Digimarc Corp
Patents indexed
1
Year range
2003
Most recent
2003
softwareconsumer_electronicsai_ml
Top Patents1 enriched
US 6567533· 2003
How Digital Images Hide Invisible Markers to Track Rotation and Scaling
Activity by Decade
2000s1
Top Patents1 enriched
US 375962· 1888
How the Modern Paper Drinking Straw Was Invented
Activity by Decade
1880s1
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