Shenzhen Wang Ling Science and Technology Development Co., Ltd.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shenzhen Wang Ling Science and Technology Development Co., Ltd..The latest application filed is for "braille writing apparatus with information processing function".
- Shenzhen Wang Ling Science and Technology Development Co., Ltd. - Shenzhen Guangdong CN
- Shenzhen Wang Ling Science and Technology Development Co., LTD. - Shenzhen, Guangdong CN
- Shenzhen Wang Ling Science and Technology Development Co., Ltd. -
- SHENZHEN WANG LING SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. - RM611, SHANGBU GONGMAO BUILDING NO. 6, ZHENXING GUANGDONG CN
| Patent | Date |
|---|---|
| Braille writing device capable of processing information Grant 8,342,846 - Yau January 1, 2 | 2013-01-01 |
| Multi-functional cover Grant 7,618,065 - Yau November 17, 2 | 2009-11-17 |
| Information book with PDA and multiple foldable pieces Grant 7,540,379 - Yau June 2, 2 | 2009-06-02 |
| Braille Writing Apparatus With Information Processing Function App 20090004632 - Yau; Yimwai | 2009-01-01 |
| Adjustable Document File Binding Device App 20080050204 - Yau; Yimwai | 2008-02-28 |
| Information Book With Pda And Multiple Foldable Pieces App 20070199851 - Yau; Yimwai | 2007-08-30 |
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