Portfolio comparison
Carter Wallace Inc vs Lewis E. Waterman
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Carter Wallace Inc
Patents indexed
1
Year range
1989
Most recent
1989
consumer_electronicsmaterials
Top Patents1 enriched
US 4810490· 1989
How to Make Clear, Waterproof Sunscreen That Doesn't Feel Greasy
Activity by Decade
1980s1
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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