Chang; Sujin C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Sujin C..The latest application filed is for "mobile device session switching".
- Chang; Sujin C. - Stow MA US
- Chang; Sujin C - Stow MA
| Patent | Date |
|---|---|
| Mobile device session switching Grant 8,849,348 - Xiao , et al. September 30, 2 | 2014-09-30 |
| Voice and text communication system Grant 8,509,408 - Goodman , et al. August 13, 2 | 2013-08-13 |
| Mobile Device Session Switching App 20130130669 - Xiao; Hong ; et al. | 2013-05-23 |
| Pbx Call Management App 20110164744 - Olshansky; Robert ; et al. | 2011-07-07 |
| Voice And Text Communication System App 20100150333 - GOODMAN; Lee N. ; et al. | 2010-06-17 |
| PBX call management App 20070092073 - Olshansky; Robert ; et al. | 2007-04-26 |
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