Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832928 | Method for producing ammonium polyphosphate | Rubin Feldman, Robert L. Bryant | 1989-05-23 |
| 4829490 | Electrical signal discrimination | — | 1989-05-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832928 | Method for producing ammonium polyphosphate | Rubin Feldman, Robert L. Bryant | 1989-05-23 |
| 4829490 | Electrical signal discrimination | — | 1989-05-09 |