Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7019832 | Optical spectrometer with several spectral bandwidths An optical spectrometer comprises at least two coupling apertures with different mode field diameters, a means for dispersing the light beams exiting each of the coupling apertures along a dispersion axis and at least two decoupling apertures on which the dispersed ... | 03/28/2006 |
| 6614527 | Spectral bandwidth calibration of an optical spectrum analyzer In an optical spectrum analyzer, the respective wavelength bandwidths of the optical spectrum analyzer are determined at the wavelengths of the reference lines and used as calibration data for determining measurement tolerances by means of reference lines... | 09/02/2003 |
| 6614513 | Apparatus and method for measuring the chromatic dispersion of an optical transmission link In a method for measuring the chromatic dispersion of a light waveguide an amplitude modulated broadband optical signal is fed into the optical transmission link to be measured, the transmitted signal is separated into a reference path, in which the modul... | 09/02/2003 |
