Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668093 | Use of alkenylsuccinic acid half-amides | Gernot Kremer | 1997-09-16 |
| 5308600 | Process for conditioning waste sulfuric acid | Helmold von Plessen, Wolfram Fritsche-Lang | 1994-05-03 |
| 4741847 | Aqueous anti-corrosion agent containing an ammonium salt of 2-benzthiazolythiocarboxylic acid | Francesco Cargnino, Giuseppe Natoli | 1988-05-03 |
| 4729841 | Alkenylsuccinic acid half-amides as anticorrosion agents | Werner Ritschel | 1988-03-08 |
| 4724124 | Use of alkenylsuccinic acid half-amides as anti-corrosion agents | Werner Ritschel | 1988-02-09 |
| 4609531 | Use of alkenylsuccinic acid half-amides as anticorrosion agents | Werner Ritschel | 1986-09-02 |
| 4552678 | Corrosion inhibitors for aqueous liquids for the working of metals, and a process for their preparation | Francesco Cargnino, Giuseppe Natoli | 1985-11-12 |
| 4533479 | Corrosion inhibitors for aqueous liquids for the working of metals, and a process for their preparation | Francesco Cargnino, Giuseppe Natoli | 1985-08-06 |
| 4476034 | Emulsifiers for metal processing oils | Bernhard Mees | 1984-10-09 |
| 4323476 | Anticorrosive agent for aluminium and aluminium alloys | Rainer Helwerth | 1982-04-06 |
| 4297236 | Water miscible corrosion inhibitors | Helmut Diery, Rainer Helwerth, Horst Frohlich | 1981-10-27 |