MERCK & CO., INC.
🏢 View company profile →4,826Patents
96Active
4,826Granted
47Portfolio score
Filing activity: Aug 8, 1969 → May 22, 2017 · 92 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5120548A | Swelling modulated polymeric drug delivery device | Human Necessities | 693 | Expired |
| US4439196A | Osmotic drug delivery system | Human Necessities | 497 | Expired |
| US4861760A | Ophthalmological composition of the type which undergoes liquid-gel phase transition | Human Necessities | 364 | Expired |
| US4374829A | Aminoacid derivatives as antihypertensives | Emerging Cross-Sectional Technologies | 355 | Expired |
| US4231938A | Hypocholesteremic fermentation products and process of preparation | Chemistry; Metallurgy | 342 | Expired |
| US4478822A | Drug delivery system utilizing thermosetting gels | Human Necessities | 307 | Expired |
| US4851228A | Multiparticulate controlled porosity osmotic | Human Necessities | 280 | Expired |
| US4444784A | Antihypercholesterolemic compounds | Chemistry; Metallurgy | 270 | Expired |
| US4474752A | Drug delivery system utilizing thermosetting gels | Human Necessities | 263 | Expired |
| US4474751A | Ophthalmic drug delivery system utilizing thermosetting gels | Human Necessities | 243 | Expired |
| US4767627A | Drug delivery device which can be retained in the stomach for a controlled period of time | Human Necessities | 226 | Expired |
| US7125855B2 | Nucleoside derivatives as inhibitors of RNA-dependent RNA viral polymerase | Emerging Cross-Sectional Technologies | 214 | Expired |
| US6777395B2 | Nucleoside derivatives as inhibitors of RNA-dependent RNA viral polymerase of hepatitis C virus | Emerging Cross-Sectional Technologies | 212 | Expired |
| US5258389A | O-aryl, O-alkyl, O-alkenyl and O-alkynylrapamycin derivatives | Chemistry; Metallurgy | 204 | Expired |
| US6317648A | Customer specific packaging line having containers with tag means containing medication order information | Emerging Cross-Sectional Technologies | 198 | Expired |
| US5856326A | Inhibitors of farnesyl-protein transferase | Chemistry; Metallurgy | 198 | Expired |
| US6565813B1 | Virtual wells for use in high throughput screening assays | Chemistry; Metallurgy | 165 | Expired |
| US6852727B2 | Benzimisazo[4,5-f]isoquinolinone derivatives | Chemistry; Metallurgy | 164 | Expired |
| US6522945B2 | Customer specific packaging line | Emerging Cross-Sectional Technologies | 163 | Expired |
| US4475916A | Osmotic drug delivery system | Human Necessities | 163 | Expired |
| US4230105A | Transdermal delivery of drugs | Performing Operations; Transporting | 161 | Expired |
| US4668770A | Renin inhibitory tripeptides | Emerging Cross-Sectional Technologies | 156 | Expired |
| US4199569A | Selective hydrogenation products of C-076 compounds and derivatives thereof | Chemistry; Metallurgy | 156 | Expired |
| US7105499B2 | Nucleoside derivatives as inhibitors of RNA-dependent RNA viral polymerase | Emerging Cross-Sectional Technologies | 155 | Expired |
| US4377584A | 4-Aza-17.beta.-substituted-5.alpha.-androstan-3-one-reductase inhibitors | Chemistry; Metallurgy | 154 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.