Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10392710 | Brightening and passivation of stainless steel surfaces | Valentino Gasparetto, Mauro Rigamonti, Stefano Sfolcini | 2019-08-27 |
| 10287665 | Dry lubricant for zinc coated steel | Mauro Rigamonti, Reinhard Seidel, Roberto Galli, Luigi Dante Madonini, Hans Clodt | 2019-05-14 |
| 9487741 | Use of nitrogen compounds in the pickling of stainless steel | Ioannis Demertzis, Mauro Rigamonti, Paolo Gamboggi | 2016-11-08 |
| 8192556 | Pickling or brightening/passivating solution and process for steel and stainless steel | Valentino Gasparetto, Mauro Rigamonti | 2012-06-05 |
| 7229506 | Process for pickling martensitic or ferritic stainless steel | Dario Negri, Mauro Rigamonti | 2007-06-12 |
| 6858097 | Brightening/passivating metal surfaces without hazard from emissions of oxides of nitrogen | Valentino Gasparetto, Dario Negri | 2005-02-22 |
| 6565735 | Process for electrolytic pickling using nitric acid-free solutions | Sandro Fortunati, Yoannis Demertzis, Stefano Trasatti, Augusto Musso, Franco Mancia | 2003-05-20 |
| 6554908 | Process for pickling stainless steel in the absence of nitric acid and in the presence of chloride ions | Dario Negri | 2003-04-29 |
| 6210558 | Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically | Ioannis Demertzis, Cesare Pedrazzini, Maurizio Busnelli | 2001-04-03 |
| 6068001 | Process for stainless steel pickling and passivation without using nitric acid | Cesare Pedrazzini | 2000-05-30 |
| 5843240 | Process for stainless steel pickling and passivation without using nitric acid | Cesare Pedrazzini | 1998-12-01 |