Fisons Ltd.
189Patents
0Active
189Granted
41Portfolio score
Filing activity: Feb 16, 1971 → Jul 13, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4405598A | Composition for treating asthma | Chemistry; Metallurgy | 123 | Expired |
| US5902789A | Nasal administration of drugs | Human Necessities | 98 | Expired |
| US4161516A | Composition for treating airway disease | Chemistry; Metallurgy | 82 | Expired |
| US3949751A | Method and device for dispensing medicament to the body | Human Necessities | 76 | Expired |
| US4249526A | Inhalation device | Human Necessities | 75 | Expired |
| US3957965A | Sodium chromoglycate inhalation medicament | Human Necessities | 73 | Expired |
| US5073560A | Spiro-isoxazolidine derivatives as cholinergic agents | Chemistry; Metallurgy | 73 | Expired |
| US4959219A | Coating barriers comprising ethyl cellulose | Human Necessities | 62 | Expired |
| USD269463S | Container for a medicinal inhaler | General | 60 | Expired |
| US4066756A | Therapeutic compositions of 1,3-bis(2-carboxychromon-5-yloxyl)propan-2-ol and aspirin or indomethacin | Human Necessities | 55 | Expired |
| US4423724A | Inhalation device for powdered medicaments | Human Necessities | 52 | Expired |
| US6138673A | Inhalation device and method | Human Necessities | 50 | Expired |
| US4414972A | Inhalation device | Human Necessities | 45 | Expired |
| US4101070A | Centrifuge rotor coupling | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4859461A | Coatable ion exchange resins | Human Necessities | 37 | Expired |
| US4009280A | Powder composition for inhalation therapy | Human Necessities | 33 | Expired |
| US5429302A | Nebulizing element and device | Human Necessities | 29 | Expired |
| US4189571A | Esters of cromoglycates | Chemistry; Metallurgy | 29 | Expired |
| US4296114A | 3,4-Dihydro-3-oxopyrido[2,3-b]-pyrazines, compositions and use thereof | Chemistry; Metallurgy | 27 | Expired |
| US4281008A | Pharmaceutical heterocyclic compounds and compositions | Chemistry; Metallurgy | 26 | Expired |
| US5334720A | Diphenyl-1-(aminoalkyl)-2-piperidinone and -2-pyrrolidinone derivatives having anticonvulsant properties | Chemistry; Metallurgy | 24 | Expired |
| US4299832A | Substituted theophylline compounds | Chemistry; Metallurgy | 24 | Expired |
| US4199578A | Composition | Human Necessities | 23 | Expired |
| US4104078A | Method for separation of dextrans | Chemistry; Metallurgy | 23 | Expired |
| US4419352A | Pyranoquinolinones and analogs thereof | Chemistry; Metallurgy | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.