Portfolio comparison
Hovercraft Development Ltd vs Prodigy Services Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Hovercraft Development Ltd
Patents indexed
1
Year range
1967
Most recent
1967
automotiveaerospacemechanicaltransportation
Top Patents1 enriched
US 3321037· 1967
How Hovercrafts Use Flexible Skirts to Ride on Air
Activity by Decade
1960s1
Company B
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
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