Jozsef Olah

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Budapest, HU

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing an agricultural fertilizer from sewage
- Patent number 4,772,307
- Issue date Sep 20, 1988
- Jeno Kiss
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process and equipment for ultrasonic conditioning of sewage sludges
- Patent number 4,340,488
- Issue date Jul 20, 1982
- Vizgazdalkodasi Tudomanyos Kutatokozpont
- Andras Toth
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE