Portfolio comparison
Hohai University HHU vs Kirin Amgen Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Hohai University HHU
Patents indexed
1
Year range
2023
Most recent
2023
ai_mlsoftwarecivil_engineeringdata_analytics
Top Patents1 enriched
US 11842324· 2023
AI for Spotting Dam Problems in Inspection Reports
Activity by Decade
2020s1
Company B
Kirin Amgen Inc
Patents indexed
1
Year range
1987
Most recent
1987
biotechpharmaceuticalgene_editingbiotechnology
Top Patents1 enriched
US 4703008· 1987
How to Make Human Erythropoietin (EPO) Using Engineered DNA
Activity by Decade
1980s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.