Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359577 | Non-pyrophoric nigrosine base | Erwin Klingsberg | 1982-11-16 |
| 4321187 | Phosphinic acid flame retardants for polyphenylene ether resins | — | 1982-03-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359577 | Non-pyrophoric nigrosine base | Erwin Klingsberg | 1982-11-16 |
| 4321187 | Phosphinic acid flame retardants for polyphenylene ether resins | — | 1982-03-23 |