Jen-Tsung Liao

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Taichung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Drilling machine
- Patent number 9,259,791
- Issue date Feb 16, 2016
- Shajeng Hardware Co., Ltd.
- Jen Tsung Liao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Air filter for a ceiling fan
- Patent number 6,248,147
- Issue date Jun 19, 2001
- Jen-Kuan Liao
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
STEP DRILL
- Publication number 20250100056
- Publication date Mar 27, 2025
- Shajeng Hardware Co., Ltd.
- Jen-Tsung Liao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Multi-sectional Drilling and Tapping Apparatus
- Publication number 20170136564
- Publication date May 18, 2017
- Shajeng Hardware Co., Ltd.
- Jen-Tsung Liao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Iron-Cutting Drill
- Publication number 20160158851
- Publication date Jun 9, 2016
- Shajeng Hardware Co., Ltd.
- Jen Tsung Liao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Drilling Machine
- Publication number 20150158093
- Publication date Jun 11, 2015
- Jen Tsung Liao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR