Portfolio comparison
EC Power vs William Stanley, Jr.
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
EC Power
Patents indexed
1
Year range
2019
Most recent
2019
consumer_electronicsautomotivetelecommunicationsenergysemiconductors
Top Patents1 enriched
US 10186887· 2019
How Batteries Charge Fast in the Cold Without Damage
Activity by Decade
2010s1
Top Patents1 enriched
US 349611· 1886
William Stanley Jr.'s Early Alternating Current Transformer System
Activity by Decade
1880s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.