Portfolio comparison
FOREST RADIO TELEPHONE CO DE vs Dolby Laboratories Licensing
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
FOREST RADIO TELEPHONE CO DE
Patents indexed
1
Year range
1908
Most recent
1908
telecommunicationssemiconductors
Top Patents1 enriched
US 879532· 1908
Lee De Forest's Early Radio Telegraphy System
Activity by Decade
1900s1
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.