Portfolio comparison
William F. Semple vs Kiverdi
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
Company B
Kiverdi
Patents indexed
1
Year range
2015
Most recent
2015
biotechenergymaterialschemicalsenvironmental_technology
Top Patents1 enriched
US 9085785· 2015
How Microbes Turn Carbon Waste into Useful Chemicals
Activity by Decade
2010s1
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