Patents by Inventor Leigh Ward
Leigh Ward has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220163018Abstract: A power storage system that uses a plurality of weights, which are raised and lowered in an underground hole, by a motor generator assembly, which is energized to raise the weights thus storing potential energy in the position of the weight, and which recovers energy from lowering the weights as the weights are lowered. A connection assembly, connects between the motor generator and at least one weight; where the connection assembly allows disconnecting a weight from a specific connection assembly, and using the motor generator assembly to raise and lower a different weight once the first weight is disconnected. This enables reusing the moving parts such as the motor generator assembly with multiple different weights.Type: ApplicationFiled: September 29, 2021Publication date: May 26, 2022Inventors: Damien Michael Trevor Waller, Justin Leigh Ward
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Patent number: 11058318Abstract: A method for use in determining fluid levels within a subject, the method including, in a processing device, determining at least one impedance value measured for the subject, determining physical dimensions for at least part of at least one segment of the subject, using the physical dimensions to determine a shape factor at least partially indicative of a shape of the at least one segment and calculating a fluid indicator indicative of the fluid levels in the segment at least in part using the at least one impedance value and the shape factor.Type: GrantFiled: July 14, 2016Date of Patent: July 13, 2021Assignee: IMPEDIMED LIMITEDInventors: Leigh Ward, Tim Essex
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Publication number: 20180206759Abstract: A method for use in determining fluid levels within a subject, the method including, in a processing device, determining at least one impedance value measured for the subject, determining physical dimensions for at least part of at least one segment of the subject, using the physical dimensions to determine a shape factor at least partially indicative of a shape of the at least one segment and calculating a fluid indicator indicative of the fluid levels in the segment at least in part using the at least one impedance value and the shape factor.Type: ApplicationFiled: July 14, 2016Publication date: July 26, 2018Inventors: Leigh Ward, Tim Essex
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Patent number: 9149235Abstract: A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ration can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.Type: GrantFiled: December 20, 2013Date of Patent: October 6, 2015Assignee: Impedimed LimitedInventors: Leigh Ward, Brian Cornish
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Patent number: 8744564Abstract: A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ratio can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.Type: GrantFiled: June 17, 2005Date of Patent: June 3, 2014Assignee: Impedimed LimitedInventors: Leigh Ward, Bruce Cornish
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Publication number: 20140107522Abstract: A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ration can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: IMPEDIMED LIMITEDInventors: LEIGH WARD, Brian Cornish
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Patent number: 8615292Abstract: A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ratio can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.Type: GrantFiled: June 17, 2005Date of Patent: December 24, 2013Assignee: Impedimed LimitedInventors: Leigh Ward, Bruce Cornish
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Patent number: 8233974Abstract: The present invention provides a method of assessing tissue oedema, in particular lymphoedema, by measuring bioelectrical impedance at a single frequency. Comparison of a single frequency bioelectrical impedance measurement taken at an anatomical region affected by tissue oedema to that taken at an anatomical region unaffected by tissue oedema is a reliable indicator of the presence or possible presence of lymphoedema. The present invention further provides an apparatus for determining the presence of tissue oedema.Type: GrantFiled: January 29, 2004Date of Patent: July 31, 2012Assignee: Impedimed LimitedInventors: Leigh Ward, Bruce Herbert Cornish
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Publication number: 20080319336Abstract: A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ratio can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.Type: ApplicationFiled: June 17, 2005Publication date: December 25, 2008Inventors: Leigh Ward, Bruce Cornish
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Publication number: 20040186392Abstract: The present invention provides a method of assessing tissue oedema, in particular lymphoedema, by measuring bioelectrical impedance at a single frequency. Comparison of a single frequency bioelectrical impedance measurement taken at an anatomical region affected by tissue oedema to that taken at an anatomical region unaffected by tissue oedema is a reliable indicator of the presence or possible presence of lymphoedema. The present invention further provides an apparatus for determining the presence of tissue oedema.Type: ApplicationFiled: January 29, 2004Publication date: September 23, 2004Applicants: The University of Queensland, Queenland University of TechnologyInventors: Leigh Ward, Bruce Herbert Cornish
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Patent number: 6760617Abstract: The present invention provides a method of assessing tissue oedema, in particular lymphoedema, by measuring bioelectrical impedance at a single frequency. Comparison of a single frequency bioelectrical impedance measurement taken at an anatomical region affected by tissue oedema to that taken at an anatomical region unaffected by tissue oedema is a reliable indicator of the presence or possible presence of lymphoedema. The present invention further provides an apparatus for determining the presence of tissue oedema.Type: GrantFiled: December 20, 2001Date of Patent: July 6, 2004Assignees: The University of Queensland, Queensland University of TechnologyInventors: Leigh Ward, Bruce Herbert Cornish
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Publication number: 20020161311Abstract: The present invention provides a method of assessing tissue oedema, in particular lymphoedema, by measuring bioelectrical impedance at a single frequency. Comparison of a single frequency bioelectrical impedance measurement taken at an anatomical region affected by tissue oedema to that taken at an anatomical region unaffected by tissue oedema is a reliable indicator of the presence or possible presence of lymphoedema. The present invention further provides an apparatus for determining the presence of tissue oedema.Type: ApplicationFiled: December 20, 2001Publication date: October 31, 2002Applicant: The University of QueenslandInventors: Leigh Ward, Bruce Herbert Cornish