Portfolio comparison
Seoul National University R&DB Foundation vs Lewis E. Waterman
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Seoul National University R&DB Foundation
Patents indexed
4
Year range
2017 – 2025
Most recent
2025
semiconductorsconsumer_electronicstelecommunicationssoftwareenergy
Top Patents4 enriched
US 12266789· 2025
How to Make Lithium-Sulfur Batteries Last Longer Using Polymer Coatings
US 9685235· 2017
How to Prepare 3D Flash Memory for Use
US 9947413· 2018
How to Program 3D Layered Memory Chips More Precisely
Activity by Decade
2010s2
2020s2
Company B
Lewis E. Waterman
Patents indexed
1
Year range
1884
Most recent
1884
mechanicalconsumer_goodsmanufacturing
Top Patents1 enriched
US 293545· 1884
How Lewis Waterman's Original Fountain Pen Design Worked
Activity by Decade
1880s1
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