Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6894151 | Lithium complexes of N-(1-hydroxymethyl-2,3-dihydroxypropyl)-1,4,7-triscarboxymethyl-1,4,7,10-tetraazacyclododecane, their production and use | Johannes Platzek, Orlin Petrov, Holger Hoffmann | 2005-05-17 |
| 5994536 | Process for mono- and 1,7-bis-N-.beta.-hydroxyalkylation of cyclene; N-.beta.-hydroxyalkyl-1,4,7,10-tetraazacyclododecane-lithium-salt complexes and the use of the complexes for the production of gadobutrol and analogs | Orlin Petrov | 1999-11-30 |
| 5232685 | Nonionic x-ray contrast medium with high iodine content | Ulrich Speck | 1993-08-03 |
| 5183654 | Nonionic x-ray contrast medium with high iodine content | Ulrich Speck | 1993-02-02 |
| 5130119 | Method of using fluorosubstituted benzene derivatives in F-NMR imaging | Ulrich Niedballa, Heinz Gries, Hans Bauer, Hanns-Joachim Weinmann | 1992-07-14 |
| 5073362 | Dicarboxylic acid-bis(3,5-dicarbamoyl-2,4,6-triiodoanilides) and x-ray contrast media containing them | Ulrich Speck | 1991-12-17 |
| 5004835 | Substituted dicarboxylic acid-bis(3,5-dicarbamoyl-2,4,6-triiodoanilides), process for their production as well as X-ray contrast media containing them | Ulrich Speck | 1991-04-02 |
| 4364921 | Novel triiodinated isophthalic acid diamides as nonionic X-ray contrast media | Ulrich Speck, Dieter Seidelmann, Erich Klieger | 1982-12-21 |