Per Holtstrand

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Sparsror, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a pipe having a socket
- Patent number 6,861,026
- Issue date Mar 1, 2005
- Uponor Innovation AB
- Per Holtstrand
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Pipe having a socket and an apparatus for making same
- Publication number 20050112229
- Publication date May 26, 2005
- Uponor Innovation AB, a Sweden corporation
- Per Holtstrand
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Method and apparatus for making a pipe having a socket, and a pipe...
- Publication number 20030030182
- Publication date Feb 13, 2003
- Per Holtstrand
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL