Tseng; Lung-Yuan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tseng; Lung-Yuan.The latest application filed is for "automatic waterproof gate".
- Tseng; Lung-Yuan - Taipei Hsien N/A TW
- Tseng; Lung-Yuan - Shin Zu TW
| Patent | Date |
|---|---|
| Automatic waterproof gate Grant 8,387,309 - Tseng March 5, 2 | 2013-03-05 |
| Automatic Waterproof Gate App 20120005960 - Tseng; Lung-Yuan | 2012-01-12 |
| Anti-Reverse Device to Block and Prevent Waste Water in a Toilet Bowl from Flowing Backward App 20110308000 - Tseng; Lung-Yuan | 2011-12-22 |
| Floor Drain Cover That Can Prevent Waste Water From Flowing Backward in a Floor Drain App 20110240536 - Tseng; Lung-Yuan ; et al. | 2011-10-06 |
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