Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9528315 | Prefabricated structure of composite window/door apparatus using different frame materials | — | 2016-12-27 |
| 9453360 | Window/ door system with flat track having “C”-shaped roller supports | — | 2016-09-27 |
| 9316045 | Window and door system having easily changeable structure | — | 2016-04-19 |
| 9103159 | Apparatus for an automatic door with an airtight frame | — | 2015-08-11 |
| 9091119 | Windows and doors assembly structure having a joint portion of 45 degrees | — | 2015-07-28 |
| 8739481 | Hidden rail type window and door system | — | 2014-06-03 |
| 8683747 | Modular window apparatus with liquid drainage ability | — | 2014-04-01 |