Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9855630 | Electricity supply tool holder for machining center | Huai-En Kao, Jian Ou, Hsin-Pao Chen, Jui-Hsiung Yen | 2018-01-02 |
| 9839983 | Machine tool of high-frequency vibration | Hsin-Pao Chen, Jian Ou, Jui-Hsiung Yen | 2017-12-12 |
| 7591274 | Economically constructed and environmentally protective umbrella formed with one-piece frame | Jung-Jen Chang | 2009-09-22 |
| 7287538 | Illuminating umbrella grip | Jung-Jen Chang | 2007-10-30 |
| 7255119 | Slim safety runner and multiple-fold umbrella thereof | Jung-Jen Chang | 2007-08-14 |
| 7089950 | Umbrella operatively closed by directly pulling runner downwardly along a guiding sleeve | Jung-Jen Chang | 2006-08-15 |
| 6817371 | Multiple-fold automatic umbrella with smoothly wound multiple-fold rope | Jung-Jen Chang | 2004-11-16 |
| 6810895 | Umbrella having safety runner and strength-enhanced shaft tube | Jung-Jen Chang | 2004-11-02 |
| 6810890 | Obstruction-free golf bag umbrella | Jung-Jen Chang | 2004-11-02 |
| 6752509 | Illuminating umbrella grip detachably mounted with cassette LED illuminating unit | Jung-Jen Chang | 2004-06-22 |
| 6736151 | Anti-windforce rib assembly of multiple-fold umbrella | Jung-Jen Chang | 2004-05-18 |
| 6668845 | Multiple-fold automatic umbrella as ergonomically constructed and manipulated | Jung-Jen Chang | 2003-12-30 |
| 6626199 | Flattened and shortened umbrella | Jung-Jen Chang | 2003-09-30 |
| 6626197 | Multiple-fold automatic umbrella with smoothly wound multiple-rope | Jung-Jen Chang | 2003-09-30 |
| 6612320 | Economic double-story umbrella as conveniently anchored | Jung-Jen Chang | 2003-09-02 |
| 6571813 | Upwardly and downwardly actuated safety runner for foldable umbrella | Jung-Jen Chang | 2003-06-03 |
| 6497242 | Multiple-fold umbrella rib assembly having inner ribs of aluminum alloy and outer ribs of carbon-fiber-reinforced plastics | Jung-Jen Chang | 2002-12-24 |
| 6418949 | Multiple-fold umbrella shaft having telescopic tubes outwardly decreased in concave quadrants | Jung-Jen Chang | 2002-07-16 |
| 6390108 | Economic double-story umbrella | Jung-Jen Chang | 2002-05-21 |
| 6390107 | Double-story umbrella | Jung-Jen Chang | 2002-05-21 |
| 6371141 | Safety umbrella runner ergonomically operated by sliding push button | Jung-Jen Chang | 2002-04-16 |
| 6360759 | Multiple-fold automatic umbrella with penta-fold rope | Jung-Jen Chang | 2002-03-26 |
| 6302125 | Simplified flat top umbrella with one-piece umbrella cloth | Jung-Jen Chang | 2001-10-16 |
| 6296001 | Rib assembly for multiple-fold umbrella having plastic intermediate rib interconnected among light ribs | Jung-Jen Chang | 2001-10-02 |
| 6216712 | Catch-free safety umbrella | Jung-Jen Chang | 2001-04-17 |