Karl Weiss hoch-tief- und Rohrleitungsbau GmbH & Co.

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Patents Grantslast 30 patents

Information Patent Grant
Flexible tube for lining pipes and ducts as well as method and an a...
- Patent number 6,129,119
- Issue date Oct 10, 2000
- Karl Weiss hoch-tief- und Rohrleitungsbau GmbH & Co.
- Siegfried Schwert
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for the coating of sewer pipes including apparatus for carry...
- Patent number 6,053,211
- Issue date Apr 25, 2000
- Karl Weiss hoch-tief- und Rohrleitungsbau GmbH & Co.
- Siegfried Schwert
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method and an apparatus for lining a pipe or duct
- Patent number 6,050,300
- Issue date Apr 18, 2000
- Karl Weiss hoch-tief- und Rohrleitungsbau GmbH & Co.
- Siegfried Schwert
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and an apparatus for lining a pipe or duct
- Patent number 6,032,698
- Issue date Mar 7, 2000
- Karl Weiss hoch-tief- und Rohrleitungsbau GmbH & Co.
- Siegfried Schwert
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL