Root; David H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Root; David H..The latest application filed is for "breath intake valve".
- Root; David H. - Penfield NY
| Patent | Date |
|---|---|
| Breath intake valve Grant 9,216,263 - Root December 22, 2 | 2015-12-22 |
| Breath Intake Valve App 20140305440 - Root; David H. | 2014-10-16 |
| Breath intake valve for a tracheostomy tube Grant 8,800,565 - Root August 12, 2 | 2014-08-12 |
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