Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414451 | High-pressure discharge lamp | David Francis Lupton | 2002-07-02 |
| 6267801 | Method for producing a tubular hydrogen permeation membrane | David Francis Lupton | 2001-07-31 |