Portfolio comparison
Process Systems Inc vs Exxon Research and Engineering Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Process Systems Inc
Patents indexed
1
Year range
1987
Most recent
1987
telecommunicationsmechanicalsemiconductors
Top Patents1 enriched
US 4677614· 1987
How Self-Healing Data Loops Automatically Elect a New Master Controller
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
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.