Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10843994 | Recovery of oxalic acid from industrial ferrous oxalate | Reuben Schapiro, Lev Shapiro | 2020-11-24 |
| 9752238 | Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process | Reuben Schapiro, Lev Shapiro | 2017-09-05 |
| 8603420 | Galvanic waste sludge treatment and manufacturing of nano-sized iron oxides | Reuben Schapiro | 2013-12-10 |
| 6818052 | Method for production of iron ioxide pigments | Marlen Oryol, Boris Oryol | 2004-11-16 |