Portfolio comparison
Battelle Development Corp vs William F. Semple
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Battelle Development Corp
Patents indexed
1
Year range
1970
Most recent
1970
consumer_electronicsmechanicaltelecommunications
Top Patents1 enriched
US 3501586· 1970
How James Russell Invented the Digital Optical Disc
Activity by Decade
1970s1
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.