Portfolio comparison
Hewlett Packard Co vs Exxon Research and Engineering Co
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
Company B
Exxon Research and Engineering Co
Patents indexed
1
Year range
1977
Most recent
1977
consumer_electronicssemiconductorsenergymaterialschemical
Top Patents1 enriched
US 4009052· 1977
Early Lithium-Ion Battery Design Using Chalcogenides
Activity by Decade
1970s1
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