Fisher & Paykel
138Patents
1Active
138Granted
44Portfolio score
Filing activity: Sep 10, 1975 → Sep 7, 2006 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6050260A | Humidifier sleep apnea treatment apparatus | Human Necessities | 391 | Expired |
| US5640951A | Humidifier conduit | Emerging Cross-Sectional Technologies | 280 | Expired |
| US6679257B1 | Breathing assistance apparatus | Human Necessities | 274 | Expired |
| US6398197B1 | Water chamber | Emerging Cross-Sectional Technologies | 268 | Expired |
| US5558084A | Humidifier with delivery tube condensation preventing structure and control | Emerging Cross-Sectional Technologies | 255 | Expired |
| US5588423A | Humidifier chamber | Human Necessities | 240 | Expired |
| US6272933A | Respiratory humidification system | Emerging Cross-Sectional Technologies | 226 | Expired |
| US6078730A | Heat respiratory conduit | Human Necessities | 219 | Expired |
| US5987105A | Appliance communication system | Electricity | 206 | Expired |
| US6349722B1 | Respiratory humidification system | Emerging Cross-Sectional Technologies | 201 | Expired |
| US5411052A | Liquid supply apparatus | Emerging Cross-Sectional Technologies | 196 | Expired |
| US4708831A | Methods of and/or apparatus for humidifying gases | Emerging Cross-Sectional Technologies | 194 | Expired |
| US6820617B2 | Breathing assistance apparatus | Human Necessities | 161 | Expired |
| US5529060A | Humidifiers with control systems to prevent condensation | Human Necessities | 156 | Expired |
| US5367604A | Humidifier apparatus and/or gases distribution chambers and/or temperature probe | Human Necessities | 155 | Expired |
| US5062145A | Humidifying apparatus | Human Necessities | 151 | Expired |
| US5537996A | Heated respiratory humidifier conduit | Human Necessities | 141 | Expired |
| US6584972B2 | Respiratory humidification system | Emerging Cross-Sectional Technologies | 136 | Expired |
| US5445143A | Humidifier with dual float valves | Emerging Cross-Sectional Technologies | 135 | Expired |
| US5470142A | Dishwasher | Electricity | 113 | Expired |
| US4203027A | Electrically heated humidifying apparatus | Human Necessities | 112 | Expired |
| US6694974B1 | Respiratory humidification system | Emerging Cross-Sectional Technologies | 111 | Expired |
| US6034493A | Brushless DC motor control | Electricity | 107 | Expired |
| US4913140A | Float-controlled humidifier | Emerging Cross-Sectional Technologies | 100 | Expired |
| US6809434B1 | Linear motor | Mechanical Engineering; Lighting; Heating | 99 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.