Portfolio comparison
Phillips Screw Co vs Transkaryotic Therapies Inc
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
Transkaryotic Therapies Inc
Patents indexed
1
Year range
2003
Most recent
2003
biotechpharmaceutical
Top Patents1 enriched
US 6531124· 2003
How to Use Modified Cells to Produce Insulin-Regulating Proteins in the Body
Activity by Decade
2000s1
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