Portfolio comparison
Innerspace Environments Inc vs Parker Brothers Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Innerspace Environments Inc
Patents indexed
1
Year range
1971
Most recent
1971
consumer_electronicsmechanical
Top Patents1 enriched
US 3585356· 1971
How the Modern Waterbed Works
Activity by Decade
1970s1
Top Patents1 enriched
US 2026082· 1935
How the Board Game Monopoly Works
Activity by Decade
1930s1
How to use
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