| UNIVERSIDAD POLITÉCNICA DE MADRID Patent applications |
| Patent application number | Title | Published |
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| 20110308513 | THERMAL SOLAR ENERGY COLLECTOR - Thermal solar energy collector, in which a solar radiation absorption panel, inside which the heat-conducting fluid flows, is situated inside a parallelepipedal box, with an opening having a transparent cover at the front, which may be doubled so as to leave an atmospheric space in the middle. The rear wall of the box has a system of seals and reservoirs which are inset in the wall so that they accommodate the expansion and contraction of vertical tubes of the panel and horizontal connections by means of gentle changes in curvature of the tube bends and slight rotations of the reservoirs, with the addition of a system for filling the box with an inert gas, the pressure of which may be chosen from a range of between a thousandth of an atmosphere and one atmosphere, there being provided for this purpose an external gas circuit, with low- and high-pressure tanks, an intermediate compressor. | 12-22-2011 |
| 20110156397 | UNDERWATER ELECTRICAL GENERATOR FOR THE HARNESSING OF BIDIRECTIONAL FLOOD CURRENTS - Underwater electrical energy generator with a three-blade propeller for the harnessing of energy from the water in the direction of its axis, in both directions. The propeller drives an alternating current generator located in a central dome from which there extend three arms joined to floats which close the Y-shaped structure by means of tie beams. The assembly has neutral floatability and is set into position by means of an anchoring system with a set of buoys joined to the bottom by one or more cables. An end of the generator is joined to an anchoring line by means of a horizontal cable in one of the main directions of the current. From the other end another two horizontal cables, open at an angle with respect to the direction of the current, are joined to another two anchoring lines. The assembly can be ballasted to go from an operating vertical underwater position to a horizontal floating position to facilitate maintenance tasks. | 06-30-2011 |
| 20110143475 | METHOD FOR MANUFACTURING OF OPTOELECTRONIC DEVICES BASED ON THIN-FILM, INTERMEDIATE-BAND MATERIALS DESCRIPTION - Method for manufacturing of optoelectronic devices based on thin-film, intermediate band materials, characterized in that it comprises, at least, the following steps: | 06-16-2011 |
| 20100044006 | ACTIVE TRANSPARENT OR TRANSLUCENT ENCLOSURES WITH ENERGY CONTROL CAPACITY - An enclosure is made out of transparent or translucent panes which form a chamber ( | 02-25-2010 |
| 20090159854 | SUPPRESSION OF NON-RADIATIVE RECOMBINATION IN MATERIALS WITH DEEP CENTRES - Procedure to obtain semiconductor materials with electronic levels close to the mid-bandgap (deep levels) which do not suffer from the non-radiative recombination by multiple phonon emission (MPE) associated to the existence of that kind of levels. The procedure consist in doping by any means the semiconductor with a density sufficiently high of the impurities producing the deep level, so that a Mott transition of the electron wavefunctions representing the localized states in the impurities is induced, in such a way that these wavefunctions become distributed across the whole semiconductor and are shared by all the impurities. When this happens, local charge density variations, and thus non-radiative recombination by MPE, disappear. Based on the resulting materials (semiconductors with three separate energy bands and radiative behavior ( | 06-25-2009 |
