Portfolio comparison
Phillips Screw Co vs Stanford Research Institute
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
Stanford Research Institute
Patents indexed
1
Year range
1970
Most recent
1970
consumer_electronicsmechanical
Top Patents1 enriched
US 3541541· 1970
How Douglas Engelbart Invented the Computer Mouse
Activity by Decade
1970s1
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