Istvan Hermecz
54Patents
7h-index
133Co-inventors
75Inventor score
Filing activity: Nov 14, 1973 → Apr 8, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5589513A | Pharmaceutical composition and process for the preparation thereof | Human Necessities | 34 | Expired |
| US4209622A | 3-(Ethoxycarbonyl-methyl)-6-methyl-4-oxo-6,7,8,9-tet rahydro-4H-pyrido[1,2-a]pyrimidine | Chemistry; Metallurgy | 12 | Expired |
| US5252572A | Pyridopyrimidine derivatives, pharmaceutical compositions containing them and process for preparing same | Chemistry; Metallurgy | 10 | Expired |
| US4472398A | Condensed pyrimidines | Human Necessities | 9 | Expired |
| US4234586A | Nitrogen bridgehead compounds having anti-allergic effect | Human Necessities | 8 | Expired |
| US6191161A | Prolylendopeptidase inhibitors | Chemistry; Metallurgy | 8 | Expired |
| US4123533A | Fused pyrimidine derivatives and compositions for treating atherosclerosis containing them | Human Necessities | 8 | Expired |
| US4940794A | Quinoline carboxylic acid boric acid anhydrides | Human Necessities | 7 | Expired |
| US4461769A | Nitrogen bridgehead compounds having anti-allergic effect | Human Necessities | 7 | Expired |
| US4291036A | Pyrido[1,2-A]pyrimidine derivatives and method of analgesic treatment | Human Necessities | 7 | Expired |
| US4367229A | 3-Substituted-tetrahydro-pyrrolo[1,2-a]pyrimidines and pharmaceutical compositions | Human Necessities | 6 | Expired |
| US4220771A | 2,3-Polymethylene-4-oxo-4H-pyrido[1,2-a]pyrimidines | Chemistry; Metallurgy | 5 | Expired |
| US6482959B1 | Process for the stereoselective reduction of &agr;,&bgr;-unsaturated ketones | Chemistry; Metallurgy | 5 | Expired |
| US4806645A | Boric anhydrides of 6-fluoro-7-chloro-1-methylamino-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid | Chemistry; Metallurgy | 5 | Expired |
| US4219649A | Pyrido[1,2-a]pyrimidine derivatives | Human Necessities | 5 | Expired |
| US5466833A | Process for the preparation of 13,14-dihydro-15(R)-17-phenyl-18,19,20-trinor-PGF.sub.2.alpha. isopropyl ester | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5403840A | Inclusion complexes of N-ethoxycarbonyl 1-3-morpholino-sydnonimine or salts formed with cyclodextrin-derivatives, preparation thereof and pharmaceutical compositions containing the same | Chemistry; Metallurgy | 4 | Expired |
| US4495189A | Condensed pyrimidines | Chemistry; Metallurgy | 4 | Expired |
| US4252807A | Fused pyrimidine derivatives and antiatherosclerotic methods of treatment with them | Human Necessities | 3 | Expired |
| US6573386B1 | Process for the preparation of spiro[(4-cyclohexanone)-[3H]indol]-2′[1′H]-one derivatives | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4260612A | Antiallergic nitrogen bridge-head compounds | Human Necessities | 3 | Expired |
| US4803274A | Norfloxacin intermediate | Chemistry; Metallurgy | 2 | Expired |
| US4814336A | Method of treating a vascular obstructive lesion resulting from restricted blood circulation | Human Necessities | 2 | Expired |
| US5091530A | Baron chelates of quinoline carboxylic acids | Human Necessities | 2 | Expired |
| US4670440A | Medicinal norfloxacin salts | Human Necessities | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.