Bjorn von Palffy

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South Beloit, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Aeration apparatus for a vertical riser in a vacuum drainage system
- Patent number 6,305,403
- Issue date Oct 23, 2001
- EVAC International Oy
- Bjorn von Palffy
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Waste fluid discharge column
- Patent number 6,283,140
- Issue date Sep 4, 2001
- EVAC International Oy
- Bjorn von Palffy
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Modular vacuum drainage system
- Patent number 6,152,160
- Issue date Nov 28, 2000
- Evac International Oy
- Ruth J. Bowden Wilcox
- E03 - WATER SUPPLY SEWERAGE