Portfolio comparison
Hewlett Packard Co vs Euro Celtique SA
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Hewlett Packard Co
Patents indexed
1
Year range
1984
Most recent
1984
consumer_electronicsmechanical
Top Patents1 enriched
US 4490728· 1984
How Thermal Inkjet Printers Use Two-Step Heating to Shoot Ink
Activity by Decade
1980s1
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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