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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 |
| 7449339 | Spectroscopic method and apparatus for total hemoglobin measurement A method and apparatus for measuring Tot-Hb in a sample are provided. The method involves collecting absorbance measurements of a sample using a spectroscopic apparatus that includes a first primary calibration algorithm for one of Oxy-Hb, “Oxy-Hb plus Deoxy-Hb”... | 11/11/2008 |
| 7343185 | Measurement of body compounds The present invention provides a method for identifying a concentration of a compound within a part of a subject. The method involves measuring the amount of electromagnetic radiation reflected by, or transmitted through the part with a detector, and using a quantit... | 03/11/2008 |
| D534445 | Handheld diagnostic instrument | 01/02/2007 |
| D533095 | Handheld diagnostic instrument | 12/05/2006 |
