Gerd Ascher
30Patents
6h-index
17Co-inventors
66Inventor score
Filing activity: Feb 6, 1976 → Jun 13, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7534814B2 | Mutilin derivatives and their use as antibacterials | Chemistry; Metallurgy | 115 | Expired |
| US6063917A | Cephalosporin synthesis | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6531465B1 | Antibacterial cephalosporins | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6248881A | Intermediates and process for the production of 3-vinyl cephalosporins | Chemistry; Metallurgy | 8 | Expired |
| US5856474A | Cephalosporin synthesis | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4767852A | New process for producing cephalosporin antibiotics, and novel intermediates for use in such process and their production | Chemistry; Metallurgy | 7 | Expired |
| US5401841A | Process for the production of cephalosporines | Human Necessities | 6 | Expired |
| US6784193B1 | Mutilin derivatives and their use as antibacterials | Chemistry; Metallurgy | 5 | Expired |
| US6093813A | Cephalosporin compounds | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5585485A | Cephalosporin intermediate products | Chemistry; Metallurgy | 3 | Expired |
| US7169804B2 | Antibacterial mutilins | Chemistry; Metallurgy | 2 | Expired |
| US6753445B2 | Pleuromutilin derivatives having antibacterial activity | Chemistry; Metallurgy | 2 | Expired |
| US4057557A | Certain 5-nitrothiazolylimidazolidine compounds | Chemistry; Metallurgy | 2 | Expired |
| US4055646A | 1-(5-Nitrothiazolyl-2)-3-(piperazinomethyl)-imidazolidinones-2 and corresponding imino and thiones | Chemistry; Metallurgy | 2 | Expired |
| US6693095B2 | Antibacterial substituted 7-acylamino-3-(methylhydrazono) methyl-cephalosporins and intermediates | Chemistry; Metallurgy | 2 | Expired |
| US5003073A | Process for producing cephalosporin antibiotics, and novel intermediates for use in such process and their production | Chemistry; Metallurgy | 2 | Expired |
| US4708825A | Process for the production of penicillins | Chemistry; Metallurgy | 1 | Expired |
| US7790767B2 | Pleuromutilin derivatives containing a hydroxyamino- or acyloxyaminocycloalkyl group | Chemistry; Metallurgy | 1 | Active |
| US4322526A | Process for producing 7-aminocephalosporanic acid | Chemistry; Metallurgy | 1 | Expired |
| US6440957B1 | Cephalosporines having cyclic aminoguanidine substituents as antibiotics | Human Necessities | 1 | Expired |
| US5138049A | Cephalosporin derivative | Human Necessities | 1 | Expired |
| US7569587B2 | Antibacterial mutilins | Chemistry; Metallurgy | 1 | Active |
| US8088823B2 | Tuberculosis treatment using pleuromutilin derivatives | Chemistry; Metallurgy | 1 | Active |
| US4267321A | Cephalosporin derivatives | Chemistry; Metallurgy | 1 | Expired |
| US6414140B2 | Process for the production of 3-vinyl cephalosporins | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.