Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6691702 | Portable oxygen concentration system and method of using the same | William Appel, David Phillip Winter, Masato Sugano, Edmund Salter, James A. Bixby | 2004-02-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6691702 | Portable oxygen concentration system and method of using the same | William Appel, David Phillip Winter, Masato Sugano, Edmund Salter, James A. Bixby | 2004-02-17 |