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USPTO Patent Rankings Data through Sept 30, 2025
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Siegfried Doujak

DKDrahtcord Saar Gmbh & Co., Kg: 1 patents #1 of 2Top 50%
Merzig, DE: #1 of 1 inventorsTop 100%
Overall (2004): #114,155 of 270,089Top 45%
1 Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6681555 False twister, especially for producing spiral filaments Bernd Heisel 2004-01-27