Ching Lan Co., Ltd.

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Patents Grantslast 30 patents

Information Patent Grant
Spring hinge for glasses
- Patent number 7,318,252
- Issue date Jan 15, 2008
- OBE Ohnmacht & Baumgartner GmbH & Co.
- Lien Fon Chang
- G02 - OPTICS
Information Patent Grant
Guiding washer for a hinge of an eyeglass frame
- Patent number 6,623,115
- Issue date Sep 23, 2003
- Ching Lan Co., Ltd.
- Lo Kun-Yuan
- G02 - OPTICS
Information Patent Grant
Guiding sheath assembly for a hinge of an eyeglass frame
- Patent number 6,353,965
- Issue date Mar 12, 2002
- Ching Lan Co., Ltd.
- Kun-Yuan Lo
- G02 - OPTICS