Portfolio comparison
Oxy Catalyst Inc vs Automatic Electric Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 2742437· 1956
How Eugene Houdry Invented the Modern Catalytic Converter
Activity by Decade
1950s1
Company B
Automatic Electric Co
Patents indexed
1
Year range
1925
Most recent
1925
telecommunicationsmechanical
Top Patents1 enriched
US 1537326· 1925
How Early Telephone Systems Managed Busy Lines Automatically
Activity by Decade
1920s1
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