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Dragan

Calin-Aurel Dragan, Saarbrucken DE

Patent application numberDescriptionPublished
20110045550Fission Yeast Expressing Cytochrome P450 Reductase - The present invention refers to a recombinant fission yeast strain useful for the improved production of human cytochrome P450s. The improvement in the cytochrome P450 rate is achieved by a coexpression of a functional human electron transfer chain e.g. CPR (cytochrome P450 reductase). The invention further relates to uses of the recombinant fission yeast and particularly the use of the recombinant fission yeast in methods to generate cytochrome P450 dependent metabolites.02-24-2011

Dumitru Dragan, Fremont, CA US

Patent application numberDescriptionPublished
20090312634GANTRY SYSTEM - A apparatus particularly well suited for use in medical imaging includes radiation sensitive detectors (12-17-2009
20100020919FOLDABLE NUCLEAR MEDICINE GANTRY - In accordance with one aspect, imaging system (01-28-2010

Joseph Dragan, Alhambra, CA US

Patent application numberDescriptionPublished
20110220039HYDROLYSIS SYSTEM TO PRODUCE HYDROGEN-OXYGEN GAS AS A FUEL ADDITIVE FOR INTERNAL COMBUSTION ENGINES - Internal combustion engines operate by igniting a mixture of liquid fuel and air inside its combustion chamber. The energy from the ignition is converted to mechanical energy that is used to power a vehicle. Research indicates that adding hydrogen gas into the combustion chamber improves the efficiency of the engine. The present invention is an electrolysis system that produces hydrogen and oxygen gases and injects them into the fuel line of the engine to create a mixture of the gases and the liquid fuel that is subsequently introduced into the combustion chamber for ignition. The operating temperature of the engine is lower if the gases are injected into the fuel line rather than directly into the combustion chamber.09-15-2011

Marinela Luminita Dragan, Portland, OR US

Patent application numberDescriptionPublished
20090186139Steam -Heat-Only, Food-Preparation Bowl Structure and Related Methodology - Steam-heat-only, food-preparation bowl structure and related methodology. The bowl structure includes (a) an outer bowl unit having a water well disposed adjacent its base, (b) an inner bowl unit nestable in the outer unit in a condition having its base spaced above the water well whereby water in the well does not contact the inner bowl's base, and with a generally closed, bowl-shaped void space then existing between the two units, the inner unit being constructed to receive a mixable mass of food, and (c) a controllable heater disposed within the well, operable to heat water contained therein to produce steam within the void space. The related methodology includes the steps of (a) applying mixing action to such a mass within the inner bowl unit, and while so applying, vapor-heating the mass indirectly and solely by an adjacent body of steam disposed in the void space between the units.07-23-2009

Valentin Dragan, Breslau CA

Patent application numberDescriptionPublished
20090263064ANGULAR BALL BEARING ASSEMBLY FOR SUPPORTING A GEAR SHAFT ASSEMBLY - The angular ball bearing assembly for supporting a rotatable shaft with gears has two sets of ball bearing members where the ball bearing member located adjacent the gears has an inner raceway formed integrally with the shaft. By forming the inner raceway directly on the shaft a reduction in friction is achieved compared to conventional tapered roller bearings.10-22-2009

William B. Dragan, Easton, CT US

Patent application numberDescriptionPublished
20090075240Conforming gingiva retraction compression cap and method of retracting tissue around a tooth - A rolled compression cap having a central bore. The rolled compression cap has adjacent layers that slide or telescope to conform to the prepared tooth and to apply more direct mechanical pressure to the interface between the prepared tooth and the gingiva. The gingiva or gum retracts from the tooth forming or widening a gingival sulcus. This improves the preparation of the tooth for taking an impression and fitting a crown or cap. In one embodiment, a rolled compression cap is pre-dosed or soaked with an astringent material or retraction agent. In another embodiment, the central bore of the rolled compression cap is filled with a paste-like or gel material containing an astringent or hemostatic agent.03-19-2009
20100255443Dental retraction material having enhanced fluid absorption - A retraction material promoting both retraction and drying of the gingival sulcus around a tooth. The retraction material comprises an astringent and an absorbing or drying agent. The retraction material is placed with a syringe and capsule around the gingival sulcus prior to the taking of an impression in a dental procedure.10-07-2010
20100304324Dental unilateral bite block - A sheet of material having a central body portion with attached wings capable of folding towards each other on either side. The wings of the bite block fold toward each other along fold lines adjacent the central body portion and provide a structure for biting down upon for propping the mouth of a patient open during a dental procedure. A mirrored surface may be placed on the central body portion for improving visibility in the mouth. In a unilateral bite block embodiment, the unilateral bite block is placed in only one side of the mouth. The bite block may be made inexpensively and is disposable.12-02-2010
20110123957DISPOSABLE DENTAL APPLICATOR - An applicator principally for use in the dental profession, for the placement of different materials in a post hole as may be required. The applicator includes an elongated handle having an applicating end portion formed as a brush and/or a flocked applicating end portion. The flock may extend from the distal end a predetermined longitudinal distance over an extended portion. The applicator is also provided with a hinging arrangement adjacent the opposed applicating end portions whereby the applicating end portions may be angularly bent relative to the elongated handle at the option of the user.05-26-2011

Patent applications by William B. Dragan, Easton, CT US

Zenon Dragan, Saskatoon CA

Patent application numberDescriptionPublished
20100044499Six rotor helicopter - A rotary wing aircraft is provided having at least three rotor pairs. Each rotor pair has an upper rotor and a lower rotor. During operation, the upper rotor and lower rotor rotate around a shared rotor axis with the upper rotor rotating in a first direction and the lower rotor rotating in an opposite direction By independently controlling the speed of rotation of each upper rotor and each lower rotor the aircraft can be made to ascend, descend, move forward, move backward, move side to side, yaw right and yaw left by only varying the relative speeds of rotations of the upper rotors and lower rotors.02-25-2010
20100108801Dual rotor helicopter with tilted rotational axes - A rotary wing aircraft apparatus includes a body and a rotor pair connected to the body by an arm. The rotor pair has an upper rotor driven by an upper motor and rotating about an upper rotor axis and a lower rotor driven by a lower motor and rotating about a lower rotor axis. The upper and lower rotor axes are tilted with respect to each other. Tilting the axes away from the arm increases the distance from the rotor blades to the arm, and decreases the risk of the blades of the rotor contacting the arm. In an aircraft with a plurality of arms extending from the body, and a rotor assembly connected to each arm, the arms can be pivoted from a flying position, where the arms extend laterally outward to a folded position where the arms are positioned substantially parallel and adjacent to each other.05-06-2010