Chang; Tsung-Chih
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Tsung-Chih.The latest application filed is for "suction cup".
- Chang; Tsung-Chih - Taichung TW
- CHANG; TSUNG-CHIH - Taichung City TW
- Chang; Tsung-chih - Shanghai CN
- CHANG; TSUNG CHIH , - Taichung City TW
- Chang; Tsung Chih - Gien Ming Tsuen Da Li City Taichung Hsien TW
| Patent | Date |
|---|---|
| Hand tool Grant 10,974,371 - Chang April 13, 2 | 2021-04-13 |
| Suction cup Grant 10,753,384 - Chang , et al. A | 2020-08-25 |
| Suction Cup App 20200256376 - CHANG; TSUNG-CHIH ; et al. | 2020-08-13 |
| Suction Cup App 20200248738 - Kind Code | 2020-08-06 |
| Cathode lock and method allowing the cathode lock to switch between normally-opened state and normally-closed state Grant 10,519,695 - Chang Dec | 2019-12-31 |
| Energy-saving magnetic lock Grant 10,422,168 - Chang Sept | 2019-09-24 |
| Hand Tool App 20190152028 - CHANG; Tsung-Chih | 2019-05-23 |
| Suction cup device Grant 9,803,682 - Chang , et al. October 31, 2 | 2017-10-31 |
| Cathode Lock and Method Allowing the Cathode Lock to Switch Between Normally-Opened State and Normally-Closed State App 20170306653 - Chang; Tsung-Chih | 2017-10-26 |
| Hand Tool App 20170259410 - CHANG; Tsung-Chih | 2017-09-14 |
| Multi-functional fruit and vegetable shaping tool Grant 9,565,962 - Chang February 14, 2 | 2017-02-14 |
| Juice extracting device Grant 9,510,618 - Chang December 6, 2 | 2016-12-06 |
| Multi-functional Fruit And Vegetable Shaping Tool App 20160227954 - CHANG; Tsung-Chih | 2016-08-11 |
| Eggshell cutter Grant D760,040 - Chang June 28, 2 | 2016-06-28 |
| Container seal Grant 9,365,329 - Chang June 14, 2 | 2016-06-14 |
| Juice Extracting Device App 20150068411 - CHANG; TSUNG CHIH , | 2015-03-12 |
| Device for controlling a door Grant 8,292,337 - Chang October 23, 2 | 2012-10-23 |
| Telescopic Kettle App 20120217238 - CHANG; TSUNG CHIH | 2012-08-30 |
| Electromagnetic Door Lock App 20090174553 - Chang; Tsung Chih | 2009-07-09 |
| Device For Controlling a Door App 20080290669 - Chang; Tsung-Chih | 2008-11-27 |
| Lamp stand Grant D389,948 - Chang January 27, 1 | 1998-01-27 |
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