Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839095 | Stable mud drilling fluid additive, composition and process for making the same | Shawqui Lahalih, Issam Dairanieh | 1989-06-13 |
| 4820766 | Highly stable sulfonated melamine-formaldehyde condensate solution | Shawqui Lahalih | 1989-04-11 |
| 4797433 | Utilization of melamine waste effluent | Shawqui Lahalih | 1989-01-10 |