Wilfried Kreft

Person

Beckum, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method for producing cement clinker
- Patent number 6,030,448
- Issue date Feb 29, 2000
- Krupp Polysius AG
- Wilfried Kreft
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for processing contaminated soils
- Patent number 5,264,654
- Issue date Nov 23, 1993
- O&K Orenstein & Koppel AG
- Wilfried Kreft
- B08 - CLEANING
Information Patent Grant
Method and apparatus for reducing the circulation of salts particul...
- Patent number 5,244,383
- Issue date Sep 14, 1993
- O&K Orenstein & Koppel AG
- Wilfried Kreft
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for the heat treatment of fine-grained material
- Patent number 4,579,526
- Issue date Apr 1, 1986
- Krupp Polysius AG
- Wilfried Kreft
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for heat treatment of fine-grained material
- Patent number 4,492,566
- Issue date Jan 8, 1985
- Krupp Polysius AG
- Wilfried Kreft
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Heat exchanger
- Patent number 4,457,082
- Issue date Jul 3, 1984
- Krupp Polysius AG
- Wilfried Kreft
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Process for the production of cement in a fluidized bed
- Patent number 4,213,790
- Issue date Jul 22, 1980
- Polysius AG
- Klaus Bauer
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Process for the heat treatment of fine material
- Patent number 4,127,406
- Issue date Nov 28, 1978
- Polysius AG
- Wilfried Kreft
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Wilfried Kreft

Person

Patents Grantslast 30 patents

Method for producing cement clinker

Method and apparatus for processing contaminated soils

Method and apparatus for reducing the circulation of salts particul...

Method and apparatus for the heat treatment of fine-grained material

Method and apparatus for heat treatment of fine-grained material

Heat exchanger

Process for the production of cement in a fluidized bed

Process for the heat treatment of fine material