Portfolio comparison
Standard Oil Co vs FIRM OF M J GOLDBERG und SOHNE
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 1049667· 1913
How William Burton Invented Modern Gasoline Refining
Activity by Decade
1910s1
Company B
FIRM OF M J GOLDBERG und SOHNE
Patents indexed
1
Year range
1928
Most recent
1928
consumer_electronicsmechanical
Top Patents1 enriched
US 1661058· 1928
How the Theremin Makes Music Without Touching Anything
Activity by Decade
1920s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.