Portfolio comparison
Nat Res Dev vs HKC Co Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 2799449· 1957
How Alan Turing Designed Early Computer Memory Systems
Activity by Decade
1950s1
Company B
HKC Co Ltd
Patents indexed
1
Year range
2025
Most recent
2025
consumer_electronicssemiconductorsmechanical
Top Patents1 enriched
US 12354567· 2025
How Foldable Screens Use Electrochromic Layers to Improve Color and Contrast
Activity by Decade
2020s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.