Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5091562 | Process for eliminating 1-carboxy-1-phosphonocyclopentan-3-one from, or reducing its content in, technical 2-phosphonobutane-1,2,4-tricarboxylic acid using bleaching liquor | Roland Kleinstuck, Hans-Dieter Block, Hermann Sicius, Peter C. Schmidt | 1992-02-25 |
| 4931586 | Process for the continuous production of 2-phosphone-butane-1,2,4-tricarboxylic acid and alkali metal salts thereof | Roland Kleinstuck, Cornelia Lensch, Hans-Dieter Block, Herbert Odenbach | 1990-06-05 |