Shin-Fa Chang

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Hard pipe cutting equipment
- Patent number 6,557,227
- Issue date May 6, 2003
- Nan Ya Plastics Corporation
- Shin-Fa Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for making an extruder sleeve
- Patent number 6,195,866
- Issue date Mar 6, 2001
- Nan Ya Plastics Corporation
- Shin-Fa Chang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Hard pipe cutting equipment
- Publication number 20030005562
- Publication date Jan 9, 2003
- Shin-Fa Chang
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC