Neurogen Corporation
312Patents
12Active
312Granted
40Portfolio score
Filing activity: Jul 24, 1990 → Aug 22, 2011 · 11 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6506762B1 | Certain alkylene diamine-substituted heterocycles | Physics | 126 | Expired |
| US6566367B2 | Spiro[isobenzofuran-1,4′-piperidin]-3-ones and 3H-spiroisobenzofuran-1,4′-piperidines | Chemistry; Metallurgy | 82 | Expired |
| US6723730B2 | Capsaicin receptor ligands | Chemistry; Metallurgy | 75 | Expired |
| US5212310A | Certain aryl fused imidazopyrimidines; a new class of GABA brain receptor ligands | Chemistry; Metallurgy | 71 | Expired |
| US5266698A | Certain aryl and cycloalkyl fused imidazopyrazinediones; a new class of GABA brain receptor ligands | Chemistry; Metallurgy | 60 | Expired |
| US6271241A | Cycloalkyl and aryl fused aminoalkyl-imidazole derivatives: modulators and GLP-1 receptors | Physics | 52 | Expired |
| US6949562B2 | Heterocyclic compounds as ligands of the GABAA receptor | Chemistry; Metallurgy | 52 | Expired |
| US5840888A | Certain aryl and cycloalkyl fused imidazopyrazinediones; a new class of GABA brain receptor ligands | Chemistry; Metallurgy | 51 | Expired |
| US6653471B2 | Heterocyclic compounds as ligands of the GABAA receptor | Chemistry; Metallurgy | 51 | Expired |
| US5693801A | Certain aryl and cycloalkyl fused imidazopyrazinediones; a new class of GaBa brain receptor ligands | Chemistry; Metallurgy | 51 | Expired |
| US6372743B1 | Certain alkylene diamine-substituted pyrazlo (1,5-a)-1,5-pyrimidines and pyrazolo (1,5-a) 1,3,5-triazines | Physics | 47 | Expired |
| US5484944A | Certain fused pyrrolecarboxanilides and their use as GABA brain receptor ligands | Chemistry; Metallurgy | 46 | Expired |
| US6559163B2 | 2,4-substituted quinoline derivatives | Chemistry; Metallurgy | 44 | Expired |
| US6413956B1 | Substituted 4-oxo-quinoline-3-carboxamides | Chemistry; Metallurgy | 42 | Expired |
| US6369053B1 | 2-Aminoquinolinecarboxamides: neurokinin receptor ligands | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6284759A | 2-piperazinoalkylaminobenzo-azole derivatives: dopamine receptor subtype specific ligands | Chemistry; Metallurgy | 34 | Expired |
| US5710274A | N-aminoalkyldibenzofurancarboxamides; new dopamine receptor subtype specific ligands | Chemistry; Metallurgy | 33 | Expired |
| US6414147B1 | 2-amino-9-alkylpurines: GABA brain receptor ligands | Chemistry; Metallurgy | 32 | Expired |
| US5159083A | Certain aminomethyl phenylimidazole derivatives; a class of dopamine receptor subtype specific ligands | Chemistry; Metallurgy | 32 | Expired |
| US6432958B1 | 2-piperazinoalkylaminobenzoazole derivatives: dopamine receptor subtype specific ligands | Chemistry; Metallurgy | 31 | Expired |
| US7342115B2 | 3-substituted-6-aryl pyridines | Chemistry; Metallurgy | 31 | Expired |
| US5130430A | 2-substituted imidazoquinoxaline diones, a new class of GABA brain receptor ligands | Human Necessities | 30 | Expired |
| US5306819A | Certain aryl a cycloalkyl fused imidazopyrazinols; and new class of GABA brain receptor ligands | Chemistry; Metallurgy | 28 | Expired |
| US5182290A | Certain oxazoloquinolinones; a new class of GABA brain receptor ligands | Chemistry; Metallurgy | 27 | Expired |
| US6380210B1 | Heteroaryl fused aminoalkyl-imidazole derivatives: selective modulators of GABAa receptors | Chemistry; Metallurgy | 27 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.