Portfolio comparison
William F. Semple vs International Business Machines
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
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
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.