Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11667990 | Process for recovering lead from a lead pastel and use thereof in a process for recovering lead-acid accumulator components | Edoardo GUERRINI | 2023-06-06 |
| 10533238 | Processes for recovering non-ferrous metals from solid matrices | Jonathan Hylkjier Nielsen, William Leonard Lane, David Michael Olkkonen, Timothy Roy Hymer | 2020-01-14 |
| 9945005 | System and method for the recovery of metal values from slags, drosses, and other metal-bearing materials | Timothy Roy Hymer, Bruce David Chamberlain, Karl F. Schneider | 2018-04-17 |
| 9945006 | Processes for recovering non-ferrous metals from solid matrices | Jonathan Hylkjier Nielsen, William Leonard Lane, David Michael Olkkonen, Timothy Roy Hymer | 2018-04-17 |
| 8715483 | Process for the recovery of lead from lead-bearing materials | Jonathan Hylkjier Nielson, William Leonard Lane, David Michael Olkkonen | 2014-05-06 |
| 8409421 | Process for producing metallic lead starting from desulfurized pastel | Marco Olper, Silvano Cossali | 2013-04-02 |
| 7604785 | Process for the recovery of elemental sulphur from residues produced in hydrometallurgical processes | Marco Olper, Silvano Cossali | 2009-10-20 |
| 7498012 | Desulfurization process of pastel and grids of lead accumulators | Marco Olper, Silvano Cossali | 2009-03-03 |
| 5879830 | Process for regenerating sodium sulphide from the sodium sulphate which forms in treating lead paste from exhausted batteries | Marco Olper, Silvano Cossali | 1999-03-09 |
| 5618507 | Process for removing SO.sub.2 from gases which contain it, with direct production of elemental sulfur | Marco Olper | 1997-04-08 |