Portfolio comparison
Hymen L. Lipman vs IpVenture Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 19783· 1858
How the Pencil and Eraser Became One Tool
Activity by Decade
1850s1
Company B
IpVenture Inc
Patents indexed
1
Year range
2010
Most recent
2010
ecommercesoftwareconsumer_electronics
Top Patents1 enriched
US 7801772· 2010
How Online Stores Automatically Block Illegal Alcohol and Tobacco Deliveries
Activity by Decade
2010s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.