Portfolio comparison
NCR Corp vs Hymen L. Lipman
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 10559047· 2020
How Mobile Devices Use Tags to Close Restaurant Checks
Activity by Decade
2020s1
Top Patents1 enriched
US 19783· 1858
How the Pencil and Eraser Became One Tool
Activity by Decade
1850s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.