Rudolf Frey

Follow

Person

Effretikon, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Device and process for adsorption or chemisorption of gaseous const...
- Patent number 6,290,752
- Issue date Sep 18, 2001
- Von Roll Umwelttechnik AG
- Felix Koller
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for removing nitrogen oxides from flue gases
- Patent number 6,117,405
- Issue date Sep 12, 2000
- Von Roll Umwelttechnik AG
- Rudolf Frey
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the treatment of flue particulates
- Patent number 5,512,257
- Issue date Apr 30, 1996
- Von Roll Umwelttechnik AG
- Rudolf Frey
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Process for the disposal of flue gas residues
- Patent number 5,367,116
- Issue date Nov 22, 1994
- Von Roll AG
- Rudolf Frey
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES