Portfolio comparison
George B. Selden vs SILONICS Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 549160· 1895
George Selden's 1895 Patent for a Road Engine
Activity by Decade
1890s1
Company B
SILONICS Inc
Patents indexed
1
Year range
1976
Most recent
1976
consumer_electronicsmechanicalmaterials
Top Patents1 enriched
US 3946398· 1976
How Piezoelectric Inkjet Printing Works
Activity by Decade
1970s1
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