Portfolio comparison
Hobart Manfacturing Co vs EI Du Pont de Nemours and Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Hobart Manfacturing Co
Patents indexed
1
Year range
1918
Most recent
1918
mechanicalconsumer_electronics
Top Patents1 enriched
US 1264128· 1918
How Early Industrial Food Mixers Used Planetary Gear Systems
Activity by Decade
1910s1
Company B
EI Du Pont de Nemours and Co
Patents indexed
6
Year range
1934 – 1974
Most recent
1974
materialsautomotiveconsumer_electronicsmechanicalaerospace
Top Patents6 enriched
US 3819587· 1974
The Molecular Structure of Kevlar High-Strength Fiber
US 2130523· 1938
How Wallace Carothers Invented Nylon
US 3733309· 1973
How Plastic Soda Bottles Are Made Stronger Using Stretched Molecules
Activity by Decade
1930s2
1960s1
1970s3
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.