Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379636 | Method for leaching nickeliferous laterite ores | J. Carlos Arroyo, James D. Gillaspie, Erik M. Weenink | 2002-04-30 |
| 6350420 | Resin-in-pulp method for recovery of nickel and cobalt | Willem P. C. Duyvesteyn, Erik M. Weenink | 2002-02-26 |