On April 26, 2025, we celebrate World Intellectual Property Day, and this year's theme is "IP and music: Feel the beat of IP"
This year's World Intellectual Property Day shines a light on creators, inventors and entrepreneurs who are pushing the boundaries of innovation and creativity to bring new ideas in the music world, and explores how Intellectual property (IP) rights and innovation policies safeguard the work of songwriters, composers, performers, and relevant stakeholders to support a vibrant, diverse music scene.
The World Intellectual Property Day has been celebrated every year since 2000 on April 26 (which is the day on which the WIPO Convention came into force in 1970), with the aim of increasing general awareness and understanding of IP.
We invite you to get acquainted with the 2024 VILNIUS TECH inventions.
Patents registered with the European Patent Office (EPO) and the United States Patent and Trademark Office (USPTO).
System and method for reinforcing structures with pre-stressed fibre-reinforced-polymer laminates. EP 4071321 B1. 2024-08-14 / inventors: Justas Šlaitas; Juozas Valivonis.
Abstract. The current invention discloses a pre-stressing system and method for retrofitting of reinforced concrete members with externally bonded CFRP laminates in bending, according to the independent claims 1 and 8. [0011] The pre-stressing system (device) comprises a clamping unit, a light frame for hydraulic jack and anchoring plates. The clamping unit consists of tempered steel grips with a corrugated surface, which are tightened with high strength bolts in a steel frame. Usually, the result of using corrugated surface steel grips would be fractured laminate. The solution of this invention is to add epoxy adhesive on both upper and lower contact surfaces of the grips and the laminate and tighten with high strength bolts in the steel frame. The result after one day of hardening is more effective clamping unit with very low slip potential. Such units can be attached on both sides of the laminate one day before strengthening outside the construction site, this way strengthening time is not higher than using any other existing method. Alternatively, if one day does not make any difference, the clamping unit can be attached on one side of the laminate and the other end can be anchored to a concrete member with riffled surface steel plates, epoxy adhesives must be added onto concrete-laminate, laminate-steel plate contact surfaces and the plates must be tightened to the concrete member with anchor bolts at once. Anchoring with plane surface plates would not withstand similar loads, even bonded with epoxy adhesive one day before the tensioning. [0012] The main working principle of the system is that hydraulic jack in steel frame pushes the clamping unit through the hinge while the other side of the laminate is anchored.. The anchoring plates are added by the same principle described above between the clamping unit and the frame of hydraulic jack. Next, the applied force is transmitted from the jack into the frame through bolts and the jack can be removed. After full hardening of the adhesive, the hydraulic jack is returned to the frame and a force of the same magnitude is added to the clamping unit. The bolts are released and the force is slowly removed, transferring pre-stressing force into the anchors and concrete-laminate joint. The improved anchors and clamping unit reduce the risk of the FRP laminate slipping in the clamping unit and the anchors and thus the failure of the concrete-laminate joint.
System and method for real-time creation and execution of a human digital twin. US 12062245 B2. 2024-08-13 / inventors: Artūras Serackis, Dalius Navakauskas, Dalius Matuzevicius, Tomyslav Sledevic, Vytautas Abromavicius.
Abstract. The present invention presents a universal reconfigurable video stream processing system where a digital twin is applied to 3D marker cloud mapping of a set of parameters, related to the current state of the monitored person (object). The invention includes two reconfigurable units, with at least one of these units being universally adjusted for any input-output mapping application with fixed input size, fixed output size and numerical values ordered by their meaning. Each reconfigurable unit includes at least one machine learning based mathematical model with a high number of parameters and non-linear functions performing as a universal approximator and ensuring high flexibility during training process. Each unit of the presented system, which includes a machine learning based mathematical model should be trained in advance of system execution with input-output mapping examples, where the range of the input values in the training example set should cover the range of the input values that will be used during system execution.
Patents registered in the Lithuanian Patent Bureau
Tiesiaeigis slenkamojo judesio pjezoelektrinis variklis = Linear sliding motion piezoelectric motor. LT 7053 B. 2024-04-10. / išradėjai: Andrius Čeponis, Dalius Mažeika.
Abstract. The invention aims to create a linear piezoelectric motor to enhance the speed, force, and precision of reciprocating motion in systems with limited size or mass requirements. The motor comprises a resilient square strip (9) with an asymmetrical groove (8), forming a thin bridge (7) on which a guided element (10) carrying a slider (2) is mounted. The motor is secured using a fastening element (11). Reciprocating motion of the slider (2) is achieved by exciting piezoelectric plates (6) with two phase-offset electric signals, approximating the strip's (9) resonance frequency. Dynamic parameters are improved by aligning the bridge's (7) bending vibration resonance frequency with the strip's (9) longitudinal vibration resonance frequency and placing the fastening (11) at the end of the nodal line. Precision is amplified using a low non-resonant frequency trapezoidal electric signal, generating a step proportional to signal amplitude.
Hidraulinis skirstytuvas su sklandžio sraigtine pavara = Hydraulic distributor with smooth screw drive. LT 7056 B. 2024-04-10 / išradėjai: Krzysztof Towarnicki, Michal Stosiak, Olegas Prentkovskis, Paulius Skačkauskas, Mykola Karpenko.
Abstract. The invention is intended to reduce the vibrations of the hydraulic distributor with a smooth screw drive in the longitudinal direction of the distributor, the pulsations of the fluid flow in the hydraulic system, the consumption of electricity when the distributor body is affected by external vibrations. The main structural elements of a hydraulic distributor with a smooth screw drive are a smooth screw drive and an electric motor. The distributor is designed for use in various types of hydraulic systems, especially when the equipment is exposed to external vibrations, such as mobile equipment and heavy-duty machinery and special vehicles. Due to the high rotation accuracy of the electric motor shaft and the precise movement of the screw mechanism, high accuracy of smooth movement of the distributor in the axial direction of the distributor is achieved. At the same time, no additional fluid flow pulsation occurs in the hydraulic system, which increases the utility, reliability, and efficiency of the hydraulic system.
Didelės galios pjezoelektrinis variklis su valdymo sistema = High power piezoelectric motor with control system. LT 7061 B. 2024-05-10 / išradėjai: Piotr Vasiljev, Dalius Mažeika, Andrius Čeponis, Sergejus Borodinas, Regimantas Bareikis, Arūnas Struckas.
Abstract. A construction of a piezoelectrically driven motor is disclosed. The piezoelectric motor allows to achieve high torque, force, speed of movement, and stability of operation with high loads. The motor comprises a stator (1) having shape of an elastic ring, with two-sided symmetrical teeth (7) located on both sides of said ring, those are preferably trapezoidal in shape. Notches (9) are formed in the common plane of the symmetry of said two-sided teeth and the stator (1) ring. Piezoelectric Langevin-type packages (11) are installed in the nodal zones of longitudinal vibrations of the stator (1) ring. On the upper and lower surfaces of the teeth (7), rigid support-friction elements are installed, through which the disk-shaped rotors (2) are pressed against the teeth (7). These disk rotors (2) are rotated by exciting the Langevin packages (11) or their groups (22, 23) with electrical signals with their frequency matching the resonant frequency of the longitudinal vibrations of the stator ring (6). When exciting the motor with two harmonic signals, the phase difference is determined by π/2. When driving by one signal, a group of piezoelectric packs (22, 23) is activated, while the other group is inactive at that time. When the motor is excited by two asymmetrical signals with a phase difference of π then the motor operates based on the inertial principle.
Kompozitinė garsą sugerianti plokštė = Sound absorbing composite panel. LT 7084 B. 2024-08-12 / išradėjai: Robert Ružickij, Raimondas Grubliauskas.
Abstract. Field of application of the invention – use in the indoor environment of buildings (rooms). The proposed composite sound-absorbing panel can be mounted on interior building elements (such as floor slabs or roof structures). After evaluating the reverberation time of the room and identifying any discrepancies with the limit values set in applicable regulatory documents, the composite sound-absorbing panel is installed on a building element within the room. Additionally, by using these composite panels, suspended ceilings can be created, which can conceal the building's engineering systems without overloading the building structure.
Pjezoelektrinis sukamojo judesio variklis = Piezoelectric rotary motion motor. LT 7097 B. 2024-09-25 / išradėjai: Dalius Mažeika, Andrius Čeponis, Sergejus Borodinas, Laurynas Šišovas.
Abstract. The invention is designed to create a piezoelectric rotary motion motor, which increases the speed of rotation, torque, motion precision, and expands the capabilities of the motor. The motor consists of a stator (2), made of piezoelectric bimorph plates (14), connected to a cylinder-shaped tube (15). Stator supports (11) are irreversibly attached to the mounting plates (4), while friction contacts (16) are placed on the upper and lower planes of the stator (2). Disk-shaped rotors (5,6) pressed against friction contacts (16) are connected by a shaft (7). Rotary motion is obtained by exciting piezoelectric bimorph plates (14) with a non-harmonic sawtooth signal, thus creating a smooth rotary motion. Slits (17) in the cylinder-shaped tube (15) ensure the lowest possible stiffness of the stator (2), and the geometrical properties of the supports (11) are selected to match the bending and torsional vibration frequencies of the piezoelectric bimorph plates (14) and supports (11). To improve the precision and capabilities of the motor's motion, the non-harmonic signal is changed to a steadily rising or descending one, causing the rotors (5,6) and shaft (7) to move proportionally to the displacements of the piezoelectric bimorph plates (14).
Inercinė keturių laisvės laipsnių pjezoelektrinė pavara = Inertial four-degree-of-freedom piezoelectric actuator. LT 7104 B. 2024-11-11. / išradėjai: Andrius Čeponis, Dalius Mažeika, Regimantas Bareika.
Abstract. The invention aims develop a high-precision piezoelectric actuator, enabling independent rotational motion along four axes and linear displacement. The actuator comprises a spherical rotor (1) positioned on three supports (5) connected to piezoelectric bimorph plates (16), forming the stator (2) fixed to an attachment plate (3) through bolts (4) in attachment zones (8). To obtain rotational movement about the horizontal axis, the piezoelectric bimorph plates (16) are excited by a sawtooth-shaped electrical signal with a frequency close or equal to the first bending deformation mode frequency. For rotational movement around the vertical axis, all piezoelectric bimorph plates (16) are affected by two sawtooth-shaped signals with a frequency close or equal the resonant frequency of the second bending deformation mode, with phase difference of π. Application of direct current electrical signal to the bimorph plates (16) ensures linear displacement of the rotor (1) in the vertical direction with a high resolution.
Opozicinis šaltojo garo variklis ir jo veikimo būdas = Opposed cold steam engine and method of operation. LT 7106 B. 2024-11-11 / išradėjai: Algimantas Rotmanas, Regimantas Bareikis, Irmantas Gedzevičius, Mantas Rotmanas.
Abstract. The invention is attributed to energy transformation machines that transform low-temperature thermal energy into mechanical energy. Thermal energy of low temperatures is concentrated into thermal energy of higher temperatures and converted into mechanical energy with the help of liquid-gas, gas-liquid phase transformations of refrigerant liquids. The invention relates to the expansion of the capabilities of the analog ("Atmospheric pressure cold steam engine and method of operation" No. EP3457052; LT No. 6635), changing its design and the nature and capabilities of generating mechanical energy, radically increasing the power/weight ratio, and expanding the possibilities of working with refrigerant liquids of different boiling and condensation temperatures, the working pressure in the engine is completely separated from the atmospheric pressure. In other words, the invention, the oppositional cold steam engine, becomes not an atmospheric pressure engine, but a working pressure engine of the refrigerant (or its vaporized components), which no longer has the fundamental shortcomings of the prototype: it generates mechanical energy during the entire 360-degree rotation of the shaft (in the prototype, only 180 degrees) ; significantly larger pressure differences are used than in the analogue (in the prototype, the pressures are limited to atmospheric pressure only); significant improvement in engine power/weight ratio (theoretically more than twice); it becomes possible to use cheaper and more environmentally friendly refrigerants and/or their mixtures and components.
Kompozitinių medžiagų sukaupto nuovargio nustatymo sistema ir būdas = System and method for determining the accumulated fatigue of composite materials. LT 7110 B. 2024-12-10 / išradėjai: Vytautas Bučinskas, Jūratė Jolanta Petronienė, Andrius Dzedzickis.
Abstract. The invention is intended to monitor and evaluate the level of accumulated fatigue (structure entropy) of composite and polymer parts using the data of a triboelectric effect-based sensor (2) or their array, which is then stored and processed in a microprocessor (9) or a separate computer (13). The data acquisition and processing system has a processor (11) with a memory device (12) that stores the relative fatigue estimate as an integral parameter of the load-induced deformation that reflects the fatigue level of the composite element under investigation. The present invention determines the accumulated fatigue level of a composite material or structure based on its accumulated strain energy at the locations of a sensor (2) or sensor array, without examining individual defects in the material. Concentrated or distributed cracks in the volume of the material, forming a set of fatigue cracks, are considered such defects. The proposed technical solution includes a triboelectric sensor (2) or their array formed in the body of the composite (1), and their signal is transmitted via connecting wires to a microprocessor (9) or a separate computer (13). Sensor signal – the sensor voltage depends on the accumulated path of deformation displacements during the test period. This voltage is captured in the signal regulator/amplifier (7), discharge circuit (8) and further transmitted to microprocessor complex (9), where data integrated and stored for further use.
Didelės galios pjezoelektrinė sukamoji pavara = High-power piezoelectric rotary drive. LT 7111 B. 2024-12-10 / Piotr Vasiljev, Dalius Mažeika, Andrius Čeponis, Sergejus Borodinas, Regimantas Bareikis, Arūnas Struckas.
Abstract. The invention's goal is to develop a piezoelectric motor delivering high output torque, speed, and operational stability under high loads. Comprising an elastic ring-shaped stator (6) with trapezoidal teeth (7) on either side, cuts (8) align along the teeth's horizontal axis of symmetry. Piezoelectric elements (9) are interspersed between the teeth (7). The upper and lower dual-sided trapezoidal teeth (7) are pressed against disk-shaped rotors (2) via rigid friction elements (10) positioned between them. Rotors spin as electric harmonic signals, matching the longitudinal vibration resonance frequency of the ring (6), energize the elements (9). Dual harmonic signals require a phase difference of π/2. A single electric signal activates one of the element groups (18,19), leaving the other passive. Shifting from harmonic to sawtooth or rectangular waveforms, and combining elements (18,19) into a unified group, establishes the inertial operating principle.
Pjezoelektrinis keitiklis dideles galios slenkamojo judesio pavaroms = Piezoelectric transducer for high power linear motion actuators. LT 7113 B. 2024-12-10 / Piotr Vasiljev, Dalius Mažeika, Andrius Čeponis, Sergejus Borodinas, Regimantas Bareikis, Arūnas Struckas.
Abstract. Invention is focused on a high-power piezoelectric transducer, allowing for large linear motion force, speed, and operational stability under high loads. The piezoelectric transducer consists of a rectangular plate (4), in the center of which a double-sided trapezoidal tooth (6) is mounted, and cut (8) is formed on its vertical axis of symmetry. Piezoelectric plates (3) are mounted on the upper and lower surfaces of the rectangular plate (4). At the ends of the double-sided trapezoidal tooth (6), firmly mounted friction elements (7), rigid sliders (2) are pressed, whose linear motion is induced by applying a non-harmonic electrical signal to the piezoelectric plates (3), the frequency of which is equal to or close to the resonant frequency of the second longitudinal vibration mode of the rectangular plate (4). To obtain the linear motion of the sliders (2) in the opposite direction, the phase of the electrical signal must be reversed.
