Portfolio comparison
Hovercraft Development Ltd vs University of Helsinki
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
Top Patents1 enriched
US 10400035· 2019
Using Antibodies to Protect Transplanted Organs from Damage
Activity by Decade
2010s1
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