Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6048828 | Composition for treatment of lead containing surface coatings and soil | Joseph Zelez, Robert Howard | 2000-04-11 |
| 5976270 | Composition and method for treatment of lead-containing surface coatings and soil | Joseph Zelez, Robert Howard | 1999-11-02 |
| 5741366 | Methods for treatment of lead-containing surface coatings and soil | Joseph Zelez, Robert Howard | 1998-04-21 |