Heumann Pharma GmbH
20Patents
0Active
20Granted
28Portfolio score
Filing activity: Mar 3, 1987 → Dec 17, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4816455A | Crystalline, anhydrous sigma-form of 2-(4-(2-furoyl)-(2-piperazin)-1-yl)-4-amino-6,7-dimethoxy-quinazoline hydrochloride and a process for its preparation | Human Necessities | 64 | Expired |
| US4973755A | Stable solvent adducts of Z-1-(p-.beta.-dimethylaminoethoxy-phenyl)-1-(p-hydroxyphenyl)-2-phenyl-b ut-1-ene | Human Necessities | 31 | Expired |
| US4954501A | Piperazine substituted 6-phenyldihydro-3(2H)-pyridazinones, and pharmaceutical preparations containing these | Chemistry; Metallurgy | 28 | Expired |
| US4921856A | Dihydropyridazinone derivatives, a process for their preparation and pharmaceutical preparations containing these compounds | Chemistry; Metallurgy | 15 | Expired |
| US4968683A | 6-oxo-pyridazine derivatives, a process for their preparation and medicaments containing these compounds | Chemistry; Metallurgy | 13 | Expired |
| US5021431A | Imidazolyl alkyl guanidine derivatives, processes for their preparation and pharmaceutical preparations containing these compounds | Chemistry; Metallurgy | 6 | Expired |
| US6130218A | Polymorphic form of doxazosin mesylate (Form I) | Human Necessities | 5 | Expired |
| US4957920A | Benzimidazoles, and pharmaceutical preparations containing these compounds | Human Necessities | 4 | Expired |
| US4912119A | Imidazolylguanidine derivatives and compositions containing these compounds | Chemistry; Metallurgy | 4 | Expired |
| US4978773A | Process for the preparation of 2,6-dichlorodiphenylaminoacetic acid derivatives | Chemistry; Metallurgy | 4 | Expired |
| US4968808A | Process for the preparation of nitroethene derivatives | Chemistry; Metallurgy | 4 | Expired |
| US5039675A | Benzimidazoles and pharmaceutical preparations containing these compounds | Human Necessities | 3 | Expired |
| US5108998A | Cardiotonic thiadiazine derivatives | Chemistry; Metallurgy | 2 | Expired |
| US5254583A | Salts of 2-(2,6-dichloroanilino)-phenylacetic acid, a process for their preparation and their use for pharmaceutical preparations to be applied locally | Human Necessities | 1 | Expired |
| US6133269A | Polymorphic form of doxazosin mesylate (form II) | Human Necessities | 1 | Expired |
| US4757080A | 1,4-dihydropyridine derivatives | Chemistry; Metallurgy | 1 | Expired |
| US4948802A | Guanidine carboxylic acid esters and pharmaceutical preparations containing these compounds | Chemistry; Metallurgy | 1 | Expired |
| US6140334A | Polymorphic form of doxazosin mesylate (form III) | Human Necessities | 1 | Expired |
| US4833141A | 4-[4-[[2-(halophenyl)-2-[1H-tr:azol(or diazol)-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-piperazine-1-carbi mic acids having antimycotic activity | Chemistry; Metallurgy | 0 | Expired |
| US5182294A | Imidazolyl propyl guanidine derivative and a pharmaceutical composition containing this compound | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.