Portfolio comparison
Thomas A. Edison vs Dolby Laboratories Licensing
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Thomas A. Edison
Patents indexed
3
Year range
1869 – 1897
Most recent
1897
mechanicalconsumer_electronicstelecommunications
Top Patents3 enriched
US 200521· 1878
How Thomas Edison Improved Early Phonograph Recording
US 589168· 1897
How Thomas Edison's Kinetographic Camera Captured Early Motion Pictures
US 90646· 1869
Edison's First Patent: An Electric Vote Recorder
Activity by Decade
1860s1
1870s1
1890s1
Company B
Dolby Laboratories Licensing
Patents indexed
6
Year range
2020 – 2025
Most recent
2025
consumer_electronicssoftwaretelecommunicationsmedia_entertainmentgaming
Top Patents6 enriched
US 11178503· 2021
How Smart Speakers Adapt Sound to Your Room and Listening Spot
US 10743125· 2020
How a Device Renders Immersive Sound Objects Using Speaker Virtualization
US 12335718· 2025
How to Mix Sound for Different Speaker Setups
Activity by Decade
2020s6
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.