Portfolio comparison
Margaret E. Knight vs Research in Motion Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Margaret E. Knight
Patents indexed
1
Year range
1871
Most recent
1871
mechanicalmanufacturingconsumer_goodspackaging
Top Patents1 enriched
US 116842· 1871
How Margaret Knight's Machine Made Flat-Bottom Paper Bags
Activity by Decade
1870s1
Company B
Research in Motion Ltd
Patents indexed
1
Year range
2012
Most recent
2012
consumer_electronicstelecommunicationssoftware
Top Patents1 enriched
US 8219158· 2012
BlackBerry Device with QWERTY Keyboard and Trackball Design
Activity by Decade
2010s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.