Urquhart, GB
Alexander Urquhart, Aberdeen GB
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20120168173 | WELLHEAD TREE PRESSURE COMPENSATING DEVICE - A pressure mitigating device is used to reduce pressure in a void within a wellhead housing. In one embodiment, the pressure mitigating device includes two plates that define a void between them. Increased pressure in the wellhead housing causes the plates to elastically displace towards each other. The plates contact each other, limiting the displacement prior to plastic deformation. | 07-05-2012 |
Andrew Urquhart, Nottingham GB
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20110183867 | Polymer arrays for biofilm adhesion testing - This invention relates to a method of screening arrays of polymers having pre-determined surface energies. The polymer arrays of the present invention can be used to screen for microorganism adherence. More specifically the arrays can be used to screen for adherence of particular bacteria or fungi to particular polymers in the array. Furthermore, this invention relates to a method combining in-situ polymer synthesis with physico-chemical characterisation of the resulting polymer array and subsequent biological assays of bacterial or fungal adherence. This allows for high throughput screening and characterisation of candidate polymers which are not susceptible to bacterial or fungal adherence or which can be used to support bacterial or fungal adherence where such is required. The arrays can also be used to screen for inhibition or promotion of biofilm formation. | 07-28-2011 |
Andrew Urquhart, Glasgow GB
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20100273259 | SUBSTRATES AND METHODS FOR CULTURING STEM CELLS - The present disclosure provides a device and a cell culture system comprising a substrate that generates significant chemical ion signatures adapted for culturing stem cells. This disclosure further provides unique surface properties, such as surface wettability, along with defined polymer microspot environments in an array, for effectively supporting the propagation and differentiation of human pluripotent stem cells in vitro. Methods of culturing, maintenance, differentiating stem cells as well as reprogramming somatic cells into stem cells using the device and the cell culture system with the suitable substrates, along with suitable culture media, are also provided. | 10-28-2010 |
Andrew Urquhart, Bishops Stortford GB
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20100048218 | Antenna System - Embodiments of the invention relate to wireless communications networks, and more specifically to an antenna apparatus for cellular wireless systems. Increasing data capacity of cellular wireless systems places increasing demands on the capacity of the two way connection, known as backhaul, between a cellular base station and a telecommunications network such as the PSTN backhaul, since this is the connection that has to convey the wireless-originating traffic to its destination, often in an entirely different network. Known backhaul links include leased lines, microwave links, optical fibre links or radio resources for relaying backhaul traffic between base stations. The fixed line solutions are expensive to implement and maintain, while the radio solutions antenna configurations that are not ideal for relaying data between base stations. In embodiments of the invention, communication between base stations occurs in a first timeslot by use of a first antenna system and communication between a given base station and a user equipment occurs in a second timeslot using a second antenna system. The benefit of this method is that the first antenna system can be optimised for use in communication between base stations, whereas the second antenna system can be optimised for communication with user equipment which preferably occurs within the area of cellular wireless coverage of the sector served by the second antenna system. | 02-25-2010 |
20110181482 | Antenna - Embodiments of the invention relate to an antenna structure and are particularly suited to array antennas. Conventionally, an antenna of the cavity-backed slot-radiating type comprises a slot formed in an end of an electrically conductive enclosure, which slot may be energised by a radiating element in registration with the slot. A feed network may connect to the radiating element via a transmission line formed by a conductive track on a feed layer located between the enclosure and an electrically conductive cover. A slot is formed in the section of the cover that covers the end of the cavity in which a slot is formed, such that the two slots are of substantially the same size and shape. A problem with this structure is that the cavity is difficult to mould in one piece and it can be difficult to achieve alignment of respective slots; as a result it is relatively costly to manufacture. Also, it is difficult to insert dielectric material into the enclosure to adjust the performance parameters of the antenna. An antenna according to an embodiment of the invention employs an enclosure having an aperture in one end; in preferred arrangements the aperture provides the enclosure with a substantially open end, over which the cover is placed. The cover has a slot therein, of a smaller size than the size of the aperture presented by the open ended enclosure and the slot in the cover then acts as the radiating slot. The benefit is that it is then easier to insert dielectric material into the enclosure and the enclosure is easier to mould in one piece, leading to a potential cost reduction. | 07-28-2011 |
20110223925 | Antennae System - Embodiments of the invention relate to wireless communications networks, and more specifically to an antenna apparatus for cellular wireless systems. Increasing data capacity of cellular wireless systems places increasing demands on the capacity of the two way connection, known as backhaul, between a cellular base station and a telecommunications network such as the PSTN backhaul, since this is the connection that has to convey the wireless-originating traffic to its destination, often in an entirely different network. Known backhaul links include leased lines, microwave links, optical fibre links or radio resources for relaying backhaul traffic between base stations. The fixed line solutions are expensive to implement and maintain, while the radio solutions antenna configurations that are not ideal for relaying data between base stations. In embodiments of the invention, communication between base stations occurs in a first timeslot by use of a first antenna system and communication between a given base station and a user equipment occurs in a second timeslot using a second antenna system. The benefit of this method is that the first antenna system can be optimised for use in communication between base stations, whereas the second antenna system can be optimised for communication with user equipment which preferably occurs within the area of cellular wireless coverage of the sector served by the second antenna system. | 09-15-2011 |
20110317625 | Antenna Diversity - The invention is directed to a method of communicating between a first node including a plurality of antennas and a second node, the method comprising the steps of: transmitting a signal from the first node to said second node using each of the plurality of antennas of the first node; at the second node, selecting one of the plurality of antennas for use; and communicating between the two nodes using this selected antenna. The invention is also directed to apparatus and software for performing the methods. | 12-29-2011 |
20120140682 | Dual Mode Base Station - A base station including at least a transceiver switch is provided enabling the base station to transmit and receive data in either FDD or TDD mode from an antenna. The base station may be provided with a synthesiser which can be retuned from FDD to TDD mode or alternatively, an FDD and a TDD synthesiser and a switch enabling the transmitter and receiver of the base station to process FDD or TDD mode data respectively. | 06-07-2012 |
20140011504 | ANTENNAE SYSTEM - Embodiments of the invention relate to wireless communications networks, and more specifically to an antenna apparatus for cellular wireless systems. In some embodiments, a method of transceiving signals in a wireless communications network is described. The method includes receiving, by user equipment, a signal in a time slot and a frequency band from a transceiver system, the transceiver system configured to transceive at least one other signal from one or more base stations in at least one other time slot and at least one other frequency band via at least two antenna systems. The frequency bands at least partially overlap and transmissions of the signals are in at least a portion of the wireless communications network. | 01-09-2014 |
20140302889 | Antennae System - Embodiments of the invention relate to wireless communications networks, and more specifically to an antenna apparatus for cellular wireless systems. Increasing data capacity of cellular wireless systems places increasing demands on the capacity of the two way connection, known as backhaul, between a cellular base station and a telecommunications network such as the PSTN backhaul, since this is the connection that has to convey the wireless-originating traffic to its destination, often in an entirely different network. Known backhaul links include leased lines, microwave links, optical fibre links or radio resources for relaying backhaul traffic between base stations. The fixed line solutions are expensive to implement and maintain, while the radio solutions antenna configurations that are not ideal for relaying data between base stations. In embodiments of the invention, communication between base stations occurs in a first timeslot by use of a first antenna system and communication between a given base station and a user equipment occurs in a second timeslot using a second antenna system. The benefit of this method is that the first antenna system can be optimised for use in communication between base stations, whereas the second antenna system can be optimised for communication with user equipment which preferably occurs within the area of cellular wireless coverage of the sector served by the second antenna system. | 10-09-2014 |
Andrew Urquhart, Hertfordshire GB
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20090273536 | LOW-PROFILE WIDE-BANDWIDTH RADIO FREQUENCY ANTENNA - The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to the ground plane and the planar structure may be about perpendicular to the loading plate and the ground plane. The loading plate may allow the height of the RF antenna structure above the ground plane to be relatively small. For example, the height may be significantly less than one-quarter of a wavelength of RF signals of interest. The planar structure may include two conductive matching elements to help increase the bandwidth of the RF antenna structure. | 11-05-2009 |
20120274537 | LOW-PROFILE WIDE-BANDWIDTH RADIO FREQUENCY ANTENNA - The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to the ground plane and the planar structure may be about perpendicular to the loading plate and the ground plane. The loading plate may allow the height of the RF antenna structure above the ground plane to be relatively small. For example, the height may be significantly less than one-quarter of a wavelength of RF signals of interest. The planar structure may include two conductive matching elements to help increase the bandwidth of the RF antenna structure. | 11-01-2012 |
20130162498 | Low-Profile Wide-Bandwidth Radio Frequency Antenna - The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to the ground plane and the planar structure may be about perpendicular to the loading plate and the ground plane. The loading plate may allow the height of the RF antenna structure above the ground plane to be relatively small. For example, the height may be significantly less than one-quarter of a wavelength of RF signals of interest. The planar structure may include two conductive matching elements to help increase the bandwidth of the RF antenna structure. | 06-27-2013 |
Andrew J. Urquhart, Birmingham GB
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20100330559 | FORENSIC IDENTIFICATION - The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations. | 12-30-2010 |
20110269128 | FORENSIC IDENTIFICATION - The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations. | 11-03-2011 |
20120094292 | FORENSIC IDENTIFICATION - The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations. | 04-19-2012 |
Andrew James Urquhart, Bishops Stortford GB
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20100120415 | ANTENNA AUTO-CONFIGURATION - A base station for use in a mobile telephony network includes an antenna arrangement coupled to a transceiver arrangement for producing a plurality of beams. A method of testing the base station comprises detecting at the transceiver arrangement the signal strengths of a test signal received via the beams; comparing and/or correlating the said signal strengths detected at the transceiver arrangement; and using the results of the comparisons and/or correlations to determine the configuration of the antenna arrangement and transceiver arrangement and/or to detect faults. The comparison of average signal strengths can be used to detect cabling faults, and beam errors. The correlation of un-averaged signal strengths can be used to determine which beams have the same polarisation. Beam pointing directions and the allocation of antennas to sectors can be determined by monitoring handovers of mobiles moving between cells. Frequencies may be allocated to sectors according to a frequency re-use scheme. | 05-13-2010 |
20130178223 | DOWNLINK AND UPLINK ARRAY AND BEAMFORMING ARRANGEMENT FOR WIRELESS COMMUNICATION NETWORKS - System and methods of cellular communications network are described herein. In one system, an antenna array is described. The antenna array has a first beamforming arrangement for producing uplink beams and a second beamforming arrangement for producing downlink beams. The first and second beamforming arrangements are different from one another. The wireless communication network communicates with a mobile station by use of the uplink and downlink beamforming arrangements. | 07-11-2013 |
David Urquhart, Weybridge GB
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20130295041 | Novel Composition - An oral care compositon is described for use in the treatment or alleviation of the symptoms of dry mouth comprising polyvinyl pyrrolidone (PVP) or a derivative thereof, an anionic mucoadhesive polymer and an orally acceptable carrier or excipient. | 11-07-2013 |
David Urquhart, Surrey GB
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20080317703 | Novel Composition for Xerostomia - An oral care composition is described for use in the treatment or alleviation of the symptoms of dry mouth comprising polyvinyl pyrrolidone (PVP) or a derivative thereof, an anionic mucoadhesive polymer and an orally acceptable carrier or excipient. | 12-25-2008 |
Graeme S. Urquhart, Havant GB
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20080308635 | AUTOMATED POSTAL VOTING SYSTEM AND METHOD - A voting indicium product including a human-readable portion to represent a unique vote identification element for a specific ballot choice by a specific voter. The voting indicium further including a bar-coded portion to represent the unique vote identification element for the specific ballot choice by the specific voter, the bar-coded portion encoding at least the unique vote identification element. | 12-18-2008 |
Kevin Urquhart, Birtley GB
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20130292970 | Trim Assembly with Air Duct and Handle - A trim assembly including a housing member, a complementary member, and a handle. The housing member and the complementary member cooperate to form a channel having an inlet that may be fluidly coupled to the outlet of a ventilation system of a machine. The channel provides airflow from the ventilation system to the interior of a cab of the machine by way of ventilation openings in the housing member. The handle is disposed toward the interior of the cab, the handle being adapted to be secured through at least the housing member to the frame. | 11-07-2013 |
20140049071 | Sound Insulation Structure - A sound insulation structure for vehicles, machines and equipment powered by internal combustion engines equipped with emission control systems designed to meet the T4i and T4 emission standards is disclosed. The disclosed sound insulation structure includes a barrier core layer disposed between two insulation layers. Each insulation layer is disposed between the barrier core layer and either a facing layer or a backing layer. The insulation layers may be fabricated from fiberglass while the barrier core layer may be fabricated from a polymer or a rubberized polymer such as rubberized polyethylene. The backing and facing layers may be fabricated from non-woven materials such as non-woven cellulose fibers. The sound insulation structure may also be fire resistant. | 02-20-2014 |
20140131536 | MOUNTING BRACKET FOR ELECTRONIC CONTROL MODULES - A modular assembly for mounting electronic control modules is disclosed. The modular assembly comprises a generally planar bracket having a main portion having a first side and a second side opposite of the first side, and at least mounting three feet extending from said main portion. At least four mounting points are located near a perimeter of each of the first and second surfaces. At least one electronic control module is attached to the mounting points on the first surface and at least one electronic control module is attached to the mounting points on the second surface. | 05-15-2014 |
Martin Urquhart, Aberdeenshire GB
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20120070225 | HYDRAULICALLY ACTUATED SAFETY LOCK RING - A connector assembly that can be used to connect a tension ring to a telescoping joint on a riser by using a lower set of hydraulically actuated dogs. A set of hydraulically actuated hang-off dogs on the connector assembly can be used to connect the tension ring to a diverter housing mounted on a rig. To prevent accidental disengagement of the hang-off dogs, a hydraulically actuated lock ring is used to provide a positive stop against the back of the hang-off dogs. | 03-22-2012 |
Michael Urquhart, Stevenage GB
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20130109690 | NOVEL CRYSTALLINE FORMS OF (3R, 6R)-3-(2,3-DIHYDRO-1H-INDEN-2-YL)-1-[(1R)-1-(2,6-DIMETHYL-3-PYRIDINYL)-2-- (4-MORPHOLINYL)-2-OXOETHYL]-6-[(1S)-1-METHYLPROPYL]-2,5-PIPERAZINEDIONE | 05-02-2013 |
20130267717 | PROCESS FOR THE PREPARATION OF ATOVAQUONE - Disclosed herein is novel process for preparation of atovaquone, which process includes reacting 1H-2-benzopyran-1,4(3H)-dione with 4-(4-chlorophenyl)cyclohexanecarbaldehyde. The invention further discloses novel intermediates useful in the preparation of atovaquone. | 10-10-2013 |
Michael Urquhart, Tonbridge GB
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20140200218 | NOVEL CRYSTALLINE FORMS OF (3R, 6R)-3-(2,3-DIHYDRO-1H-INDEN-2-YL)-1-[(1R)-1-(2,6-DIMETHYL-3-PYRIDINYL)-2-- (4-MORPHOLINYL)-2-OXOETHYL]-6-[(1S)-1-METHYLPROPYL]-2,5-PIPERAZINEDIONE - Disclosed are crystalline forms of (3R,6R)-3-(2,3-dihydro-1H-inden-2-yl)-1-[(1R)-1-(2,6-dimethyl-3-pyridinyl)-2-(4-morpholinyl)-2-oxoethyl]-6-[(1S)-1-methylpropyl]-2,5-piperazinedione benzenesulfonate salt and pharmaceutical compositions thereof. Also disclosed are processes for the preparation the above compounds and methods for use thereof. | 07-17-2014 |
Robert Urquhart, Isle Of Skye GB
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20150190774 | MICROCAPSULES - A method for making microcapsules including an encapsulated material may include providing, in an aqueous continuous phase, one or more microcapsules including an encapsulated material surrounded by an inner shell including a first cross-linked polymer matrix. An outer surface of the inner shell may be hydrophobic. The method may also include adding thereto a polymerizable liquid component and a stabilizing agent, wherein the polymerizable liquid component is immiscible in the aqueous environment. The method may also include forming microcapsules wetted by the polymerizable liquid component. The method may further include polymerizing the polymerizable liquid component forming an outer shell including a second cross-linked polymer matrix formed about the inner shell. The microcapsules may be included in articles and compositions. | 07-09-2015 |