Portfolio comparison
Lewis E. Waterman vs Amazon Technologies 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
Company B
Amazon Technologies Inc
Patents indexed
14
Year range
2011 – 2020
Most recent
2020
softwaretelecommunicationsecommerceconsumer_electronicsai_ml
Top Patents14 enriched
US 10878335· 2020
How Computers Find Similar Text Using Compact Data Structures
US 9280591· 2016
How Databases Keep Read-Only Copies Up-to-Date
US 9332078· 2016
How Amazon Delivers Content Faster Using Local Servers
Activity by Decade
2010s12
2020s2
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.