Portfolio comparison
William Stanley, Jr. vs Communications Services Corp Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 349611· 1886
William Stanley Jr.'s Early Alternating Current Transformer System
Activity by Decade
1880s1
Company B
Communications Services Corp Inc
Patents indexed
1
Year range
1973
Most recent
1973
telecommunicationssemiconductorsconsumer_electronics
Top Patents1 enriched
US 3713148· 1973
How Radio Frequency Identification (RFID) Tags Were Invented
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.