Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350791 | Vinylpyrrolidone polymers, their preparation, their use in the preparation of plasma substitutes, and the substitutes thus obtained | Siegfried Lang, Eckhard Roske | 1982-09-21 |
| 4345049 | Preparation of polyvinylpyrrolidone-iodine | Walter Denzinger, Heinrich Hartmann | 1982-08-17 |
| 4330451 | Preparation of a polyvinylpyrrolidone by heat treatment of an aqueous solution of a conventional polyvinylpyrrolidone | Heinrich Hartmann, Paul Naegele, Karl Seib | 1982-05-18 |