Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10625307 | System comprising a portable switching device for use with a portable electronic device | Walter G. Mayfield | 2020-04-21 |
| 10589320 | System comprising a portable switching device for use with a portable electronic device | Walter G. Mayfield | 2020-03-17 |
| 10583464 | System comprising a portable switching device for use with a portable electronic device | Walter G. Mayfield | 2020-03-10 |
| 10562077 | System comprising a portable switching device for use with a portable electronic device | Walter G. Mayfield | 2020-02-18 |