Portfolio comparison
Deep Sentinel vs Lewis E. Waterman
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Deep Sentinel
Patents indexed
1
Year range
2026
Most recent
2026
consumer_electronicssoftwaretelecommunicationsai_ml
Top Patents1 enriched
US 12574477· 2026
Training AI Models Across Different Computers
Activity by Decade
2020s1
Company B
Lewis E. Waterman
Patents indexed
1
Year range
1884
Most recent
1884
mechanicalconsumer_goodsmanufacturing
Top Patents1 enriched
US 293545· 1884
How Lewis Waterman's Original Fountain Pen Design Worked
Activity by Decade
1880s1
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