Portfolio comparison
Hovercraft Development Ltd vs Chlorine Engineers Corp
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
Chlorine Engineers Corp
Patents indexed
1
Year range
2015
Most recent
2015
chemical_manufacturingenergymaterialsindustrial_processes
Top Patents1 enriched
US 9181624· 2015
Making Caustic Soda with Less Salt Using a Special Electrolysis Cell
Activity by Decade
2010s1
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