Portfolio comparison
Ampex Corp vs Euro Celtique SA
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Ampex Corp
Patents indexed
1
Year range
1960
Most recent
1960
consumer_electronicsmechanicaltelecommunications
Top Patents1 enriched
US 2956114· 1960
How Ampex Invented Modern Video Recording on Magnetic Tape
Activity by Decade
1960s1
Top Patents1 enriched
US 5639476· 1997
How to Make Pill Coatings That Keep Medicine Stable Over Time
Activity by Decade
1990s1
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