Portfolio comparison
Wham O Manufacturing Co vs Ziehm Imaging
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Wham O Manufacturing Co
Patents indexed
1
Year range
1967
Most recent
1967
mechanicalconsumer_electronics
Top Patents1 enriched
US 3359678· 1967
How the Modern Frisbee Design Works
Activity by Decade
1960s1
Top Patents1 enriched
US 12357189· 2025
How Medical Scanners Track Surgical Tools in Real-Time
Activity by Decade
2020s1
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