Portfolio comparison
Bell Telephone Laboratories Inc vs International Business Machines
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Bell Telephone Laboratories Inc
Patents indexed
5
Year range
1950 – 1963
Most recent
1963
semiconductorsconsumer_electronicstelecommunicationsenergy
Top Patents5 enriched
US 2569347· 1951
The Invention of the Junction Transistor
US 2524035· 1950
The Invention of the Transistor
US 2929922· 1960
How the First Laser Was Invented
Activity by Decade
1950s3
1960s2
Company B
International Business Machines
Patents indexed
3
Year range
2019 – 2021
Most recent
2021
semiconductorsai_mlconsumer_electronicstelecommunicationssoftware
Top Patents3 enriched
US 10740671· 2020
How IBM Uses Resistive Memory Chips to Speed Up AI Training
US 10956815· 2021
How to Fix Faulty Memory Cells in AI Chips
US 10248907· 2019
How a Single Electronic Component Can Learn and Process AI Data
Activity by Decade
2010s1
2020s2
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