Krueger; Leif Christian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Krueger; Leif Christian.The latest application filed is for "inflatable headgear comprising a wind instrument".
- Krueger; Leif Christian - Laboe DE
| Patent | Date |
|---|---|
| Inflatable headgear comprising a wind instrument Grant 11,419,377 - Krueger , et al. August 23, 2 | 2022-08-23 |
| Inflatable Headgear Comprising A Wind Instrument App 20200281296 - Krueger; Leif Christian ; et al. | 2020-09-10 |
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