Portfolio comparison
Dolby International AB vs DUAL PARKING METER Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Dolby International AB
Patents indexed
1
Year range
2020
Most recent
2020
telecommunicationsconsumer_electronicssoftware
Top Patents1 enriched
US RE47935· 2020
How Digital Audio Compression Saves Space by Copying Frequencies
Activity by Decade
2020s1
Top Patents1 enriched
US 2118318· 1938
How the First Coin-Operated Parking Meter Works
Activity by Decade
1930s1
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