RO

Ralph M. Onstenk

WB Wavin B.V.: 2 patents #23 of 114Top 25%
EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
Overall (All Time): #2,339,367 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D298379 Drum Bernardus A. Lesscher, Edward H. Hamilton 1988-11-01
4674650 Container and cover fastening means Edward H. Hamilton, Bernardus A. Lesscher 1987-06-23