Xue; Jianxian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Xue; Jianxian.The latest application filed is for "exhalation and inhalation valves that have a multi-layered flexible flap".
- Xue; Jianxian - St. Paul MN
- Xue; Jianxian - Maplewood MN
| Patent | Date |
|---|---|
| Filtering face mask that has a resilient seal surface in its exhalation valve Grant 7,188,622 - Martin , et al. March 13, 2 | 2007-03-13 |
| Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap Grant 7,028,689 - Martin , et al. April 18, 2 | 2006-04-18 |
| Exhalation and inhalation valves that have a multi-layered flexible flap Grant 7,013,895 - Martin , et al. March 21, 2 | 2006-03-21 |
| Exhalation and inhalation valves that have a multi-layered flexible flap App 20050155607 - Martin, Philip G. ; et al. | 2005-07-21 |
| Filtering Face Mask That Uses An Exhalation Valve That Has A Multi-layered Flexible Flap App 20050061327 - Martin, Philip G. ; et al. | 2005-03-24 |
| Filtering face mask that has a resilient seal surface in its exhalation valve App 20040255947 - Martin, Philip G. ; et al. | 2004-12-23 |
| Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure Grant 6,332,465 - Xue , et al. December 25, 2 | 2001-12-25 |
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