Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469426 | Incandescent lamp having a helical coil that comprises multiple sections of different pitches | Derek Peter Hurst, Paul Anthony Grazier, Anthony John Perrin, Francis Decort | 2002-10-22 |