Inventor
SCHWERT SIEGFRIED
DE12 patents
⚠️ This page may combine multiple inventors who share the name “SCHWERT SIEGFRIED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHWERT SIEGFRIED
5 patentsUS5271433ADec 21, 1993
Hose for lining pressure pipe lines
SCHWERT SIEGFRIED49 citations86
US7641756B2Jan 5, 2010
Method and device for lining a pipe conduit or a channel
SCHWERT SIEGFRIED19 citations82
US6779563B2Aug 24, 2004
Method and tube for lining a high pressure pipe
SCHWERT SIEGFRIED11 citations67
US9816660B2Nov 14, 2017
Lining hose, renovated pressure pipe and method for renovating a pressure pipe
SCHWERT SIEGFRIED4 citations63
US8323445B2Dec 4, 2012
Method for lining a pipe conduit or a duct
SCHWERT SIEGFRIED0 citations40
KARL WEISS HOCH TIEF UND ROHRL
4 patentsUS6050300AApr 18, 2000
Method and an apparatus for lining a pipe or duct
KARL WEISS HOCH TIEF UND ROHRL49 citations88
US6129119AOct 10, 2000
Flexible tube for lining pipes and ducts as well as method and an apparatus for manufacturing thereof
KARL WEISS HOCH TIEF UND ROHRL17 citations79
US6032698AMar 7, 2000
Method and an apparatus for lining a pipe or duct
KARL WEISS HOCH TIEF UND ROHRL9 citations71
US6053211AApr 25, 2000
Method for the coating of sewer pipes including apparatus for carrying out the method
KARL WEISS HOCH TIEF UND ROHRL15 citations70