SS

Sigurd Schwanenberg

ZG Zeller Plastik Gmbh: 2 patents #2 of 13Top 20%
CT Crown Cork & Seal Technologies: 1 patents #99 of 178Top 60%
📍 Luzern, CH: #69 of 279 inventorsTop 25%
Overall (All Time): #1,615,215 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6367668 Self-closing closure and closure membrane relating to same — 2002-04-09
6213355 Closure membrane and closure employing same — 2001-04-10
6095381 Self-closing seal with a sealing membrane — 2000-08-01