Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6947031 | Data processing apparatus with replacement keyboard | Christopher Chapman | 2005-09-20 |
| 6891527 | Processing signals to determine spatial positions | Christopher Chapman, Anthony Richard Hardie-Bick | 2005-05-10 |
| 6861961 | Foldable alpha numeric keyboard | Christopher Chapman | 2005-03-01 |