Siegfried Wolf
18Patents
5h-index
11Co-inventors
63Inventor score
Filing activity: Sep 18, 1974 → Jun 21, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6350869B1 | Crystalline amine salt of cefdinir | Human Necessities | 8 | Expired |
| US3964394A | Pyrochemical gas generator | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5616703A | Separation of cephalosporin isomers | Human Necessities | 6 | Expired |
| US6313289A | Purification process | Chemistry; Metallurgy | 5 | Expired |
| US5869648A | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Chemistry; Metallurgy | 5 | Expired |
| US3941255A | Article turning device | Performing Operations; Transporting | 3 | Expired |
| US5861508A | Purification of a cephalosporin salt | Human Necessities | 3 | Expired |
| US7355041B2 | Intermediates in cefprozil production | Chemistry; Metallurgy | 2 | Expired |
| US6235897A | Separation of cephalosporin isomers | Human Necessities | 2 | Expired |
| US7847093B2 | Processes for the preparations of cefepime | Chemistry; Metallurgy | 1 | Expired |
| US6136967A | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Chemistry; Metallurgy | 1 | Expired |
| US6489470B1 | Process for the preparation of cefpodoxime proxetil diastereoisomers | Chemistry; Metallurgy | 1 | Expired |
| US6333409A | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Chemistry; Metallurgy | 1 | Expired |
| US7250508B2 | Cefdinir intermediate | Human Necessities | 0 | Expired |
| US6949641B2 | Crystalline β-lactam intermediate | Chemistry; Metallurgy | 0 | Expired |
| US6787649B2 | Cephalosporin intermediates | Chemistry; Metallurgy | 0 | Expired |
| US5659030A | Purification of a cephalosporin salt | Human Necessities | 0 | Expired |
| US7825241B2 | Cefdinir intermediate | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.