Portfolio comparison
DUAL PARKING METER Co vs Apple
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 2118318· 1938
How the First Coin-Operated Parking Meter Works
Activity by Decade
1930s1
Company B
Apple
Patents indexed
1
consumer_electronicssoftwaretelecommunicationsaugmented_realityhuman_computer_interaction
Top Patents1 enriched
US 20210117042
How Devices Detect Touch Using Heat Signatures
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.