Portfolio comparison
Lewis E. Waterman vs Invoca Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
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
Top Patents1 enriched
US 11521601· 2022
How AI Cleans Up Irrelevant Topics in Recorded Phone Calls
Activity by Decade
2020s1
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