Portfolio comparison
Hovercraft Development Ltd vs World View Enterprises Inc
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 11608181· 2023
How High-Altitude Parafoils Use Spring-Loaded Rods to Open Automatically
Activity by Decade
2020s1
How to use
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