Portfolio comparison
Phillips Screw Co vs Hobart Manfacturing Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Phillips Screw Co
Patents indexed
1
Year range
1936
Most recent
1936
mechanicalautomotiveconsumer_electronics
Top Patents1 enriched
US 2046343· 1936
The Invention of the Phillips Head Screw
Activity by Decade
1930s1
Company B
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
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