Portfolio comparison
William F. Semple vs MILTON HAROLD W
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
Company B
MILTON HAROLD W
Patents indexed
1
Year range
2000
Most recent
2000
consumer_electronicsgamingtelecommunications
Top Patents1 enriched
US RE36574· 2000
How Early Video Games Synchronized Gameplay Over Modems
Activity by Decade
2000s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.