Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1049500 | Mouthguard | Jan Akervall, Johann Walter Schwank, Paul Robert Wisniewski | 2024-10-29 |
| D1015645 | Mouthguard | Jan Akervall, Johann Walter Schwank, Paul Robert Wisniewski | 2024-02-20 |
| D1003523 | Mouthguard | Jan Akervall, Johann Walter Schwank, Paul Robert Wisniewski | 2023-10-31 |
| D995789 | Whitening tray for teeth | Jan Akervall, Johann Walter Schwank | 2023-08-15 |
| D859750 | Mouthguard | Jan Akervall, Charlotte Akervall, Johann Walter Schwank | 2019-09-10 |
| 9550106 | Impact energy absorbing mouth guard | Johann Walter Schwank, Jan Akervall, Valarie Thomas | 2017-01-24 |
| 9538813 | Energy absorbing elements for footwear and method of use | Johann Walter Schwank, Jan Akervall, Valarie Thomas | 2017-01-10 |
| 4500872 | Method for encoding Chinese characters | — | 1985-02-19 |