Portfolio comparison
HKC Co Ltd vs William Painter
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
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
Top Patents1 enriched
US 468226· 1892
How the Crown Cork Bottle Cap Changed Soda and Beer
Activity by Decade
1890s1
How to use
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