Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869929 | Process for preparing sic protective films on metallic or metal impregnated substrates | Alejandro L. Cabrera, John F. Kirner | 1989-09-26 |
| 4851579 | Alkylation of aromatic amines over Al exchanged zeolites | — | 1989-07-25 |
| 4822642 | Method of producing silicon diffusion coatings on metal articles | Alejandro L. Cabrera, John F. Kirner, Robert A. Miller, John N. Armor | 1989-04-18 |
| 4801751 | Process for the disproportionation of alkylated aromatic primary amines | Andrew F. Nordquist | 1989-01-31 |