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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7320321 | Self-contained micromechanical ventilator The portable ventilator of the present invention provide a hands-free ventilatory support device in critical care, emergency and resource limited environments. The portable ventilator utilizes ambient air and includes a two dual head compressor system to provide a c... | 01/22/2008 |
| 7228240 | Device and method for determining and detecting the onset of structural collapse A significant number of rescue workers are killed or injured each year as they conduct searches within damaged or burning structures, unaware that the structure is in imminent danger of collapse. The present invention provides a system and method for detecting and m... | 06/05/2007 |
| 7181264 | Method and apparatus for noninvasive physiologic monitoring Intense environmental or working conditions can impede an individual's evaporative cooling mechanism normally responsible for thermoregulation during exercise or exertion. Non-invasive physiological monitoring capabilities are needed to more precisely define the car... | 02/20/2007 |
| 7080646 | Self-contained micromechanical ventilator The portable ventilators of the present invention provide a hands-free ventilatory support device in critical care, emergency and resource limited environments. The portable ventilators utilize ambient air and include a two dual head compressor system to provide a c... | 07/25/2006 |
