Portfolio comparison
John Harvey Kellogg vs Santen Pharmaceutical Co Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 558393· 1896
How John Harvey Kellogg Invented Flaked Breakfast Cereals
Activity by Decade
1890s1
Company B
Santen Pharmaceutical Co Ltd
Patents indexed
1
Year range
2020
Most recent
2020
biotechpharmaceutical
Top Patents1 enriched
US RE48183· 2020
How a Specific Eye Drop Formula Treats Glaucoma
Activity by Decade
2020s1
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