Tzvetkov
Nikolay Tzvetkov, Sofia BG
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20150353504 | SUBSTITUTED INDAZOLE DERIVATIVES AS IN VITRO MAO-B INHIBITORS - Substituted indazole or imidazole derivatives of formula I as in vitro selective and reversible MAO-B inhibitors and for use in the prevention and treatment of meurodegenerative disorders such as Parkinson's disease, Alzheimer's disease and dementia | 12-10-2015 |
Nikolay T. Tzvetkov, Bonn DE
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20080221134 | 8-ALKYNYLXANTHINES AND DERIVATIVES - Disclosed are novel compounds of the general formula (Ia), and pharmaceutically acceptable salts, isomers, diastereomers or enantiomers thereof | 09-11-2008 |
Toshko D. Tzvetkov, Valparaiso, IN US
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20130121463 | METHOD AND APPARATUS FOR IDENTIFYING AUTHENTICITY OF AN OBJECT - An apparatus and method for applying x-ray absorption, refraction, and/or scatter detection methods to authenticate objects. The invention can be used for the authentication of any object, such as, without limitation, artwork, antiques, currency, shipped materials, etc., by the application of a detection material that is detectable by applying x-rays. The detection material is imbedded within the object, or otherwise invisible to the human eye, IR, UV, and conventional x-ray radiography techniques. The method of this invention is particularly useful in security applications, such as for verifying the authenticity of identification documents like passports and similar identification cards. | 05-16-2013 |
Tzvetan Nedialkov Tzvetkov, Powhatan, VA US
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20110028252 | UNIVERSAL SKIP-FREE DERAILLEUR - The invention is a universal front and rear derailleur configured to work with a variable mechanical transmission of the chain and sprocket type. A hollow axle is mounted adjacent to the sprockets. At least one radial arm serving as a chain lifter is rotatably mounted on the hollow axle in the chain-free sector of the sprockets. An operator controlled mechanism forces the lifter to move axially against a spring towards the sprockets. Upon contact, the sprockets entrain the lifter under the chain. The chain is lifted from the active sprocket and deposited onto another sprocket. Completing a full circle, the lifter is pushed back by the spring in its stowing position. | 02-03-2011 |
Tzvetan Nedialkov Tzvetkov, New York, NY US
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20130225340 | UNIVERSAL SKIP-FREE DERAILLEUR - A front derailleur with controllable full rotational movement with two operator selectable radial arms—one for pole-vaulting the chain to larger sprockets, the other for sliding the chain to smaller sprockets. | 08-29-2013 |
Vesselin Dimitrov Tzvetkov, Oberursel DE
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20120189008 | Method for transmitting and configuring a data packet in a network - The present invention relates to a method for transmitting a data packet in a network, wherein the data packet has a header field containing header data relevant to transmission and a user field, wherein at least one data field containing header data of a first header data type is provided in the header field, and wherein the data packet is transmitted from a transmitter device to a receiver device. In order to make possible a transmission of additional information in the header field without a loss of already existing header data information and without expanding the header data structure, it is proposed according to the invention that in the at least one data field, in addition to the header data of the first header data type, header data of at least one second header data type are also transmitted. | 07-26-2012 |