PK

Paul B. Koehler

ZE Zenon Environmental: 3 patents #21 of 62Top 35%
Overall (All Time): #1,658,412 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5227063 Tubular membrane module Robert Langerak, Fernando A. Tonelli 1993-07-13
5100549 Tubular membrane module Robert Langerak 1992-03-31
4897191 Tubular membrane module with fluid shear protection Robert Langerak, Fernando A. Tonelli, Radu Apostolache 1990-01-30