Portfolio comparison
Prodigy Services Co vs Almon B. Strowger
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Prodigy Services Co
Patents indexed
1
Year range
1994
Most recent
1994
telecommunicationssoftwareecommerceconsumer_electronics
Top Patents1 enriched
US 5347632· 1994
Prodigy's System for Interactive Online Information and Shopping
Activity by Decade
1990s1
Top Patents1 enriched
US 447918· 1891
How Almon Strowger Invented the Automatic Telephone Switch
Activity by Decade
1890s1
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