Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5565551 | Non-azo naphthalimide dyes and uses for same | David E. Lewis, Millard M. Judy, J. Lester Matthews | 1996-10-15 |
| 5472878 | Fluorescent method for monitoring oil degradation | David E. Lewis, Millard M. Judy, J. Lester Matthews | 1995-12-05 |
| 5420136 | Eradication of pathogenic biological contaminants using non-azo naphthalimide dyes | David E. Lewis, Millard M. Judy, J. Lester Matthews | 1995-05-30 |
| 5308773 | Non-azo 1,8-naphthalimide dyes for the detection and quantitation of a paramagnetic metal cation in a non-aqueous medium | David E. Lewis, Millard M. Judy, J. Lester Matthews | 1994-05-03 |
| 5235045 | Non-azo naphthalimide dyes | David E. Lewis, Millard M. Judy, J. Lester Matthews | 1993-08-10 |