Helmsen; Erik Ollgaard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helmsen; Erik Ollgaard.The latest application filed is for "a laryngeal mask".
- Helmsen; Erik Ollgaard - Esperg.ae butted.rde DK
- Helmsen; Erik Ollgaard - Espergaerde DK
| Patent | Date |
|---|---|
| Laryngeal mask Grant 10,314,993 - Hansen , et al. | 2019-06-11 |
| A Laryngeal Mask App 20160136373 - Hansen; Jan Guldberg ; et al. | 2016-05-19 |
| Laryngeal Mask App 20160101254 - Hansen; Jan Guldberg ; et al. | 2016-04-14 |
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