Patents by Inventor Panagiotis George
Panagiotis George 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).
-
Publication number: 20230143362Abstract: Described herein is using an array of microelectromechanical systems (MEMS) oscillators to produce unique identifiers. At least some of the MEMS oscillators will “couple” or influence each other when exposed to an external stimulus, such that the frequency of the device is not equal to the combination of individual MEMS oscillator frequencies. The frequency of the device provides a unique “fingerprint” that allows the device to be identified with accuracy but is incredibly difficult to copy, meaning the response may be a physical unclonable function (PUF).Type: ApplicationFiled: March 15, 2021Publication date: May 11, 2023Inventors: Panagiotis George DATSKOS, Nickolay LAVRIK
-
Patent number: 11522469Abstract: Devices, methods, and systems for electrostatic machines which can act as both an electric motor, converting electrical energy to mechanical energy, and an electric generator, converting mechanical energy to electrical energy, are described. In some embodiments, a spring positioned between two oppositely charged plates may be used as an electric motor and/or electric generator.Type: GrantFiled: December 4, 2020Date of Patent: December 6, 2022Assignee: Alliance for Sustainable Energy, LLCInventors: Panagiotis George Datskos, Jochem Weber, Blake Craig Boren
-
Patent number: 11383985Abstract: Compositions, methods, and articles of manufacture relating to a transparent/translucent insulating material formed by a hybrid silica gel composition made of porous silica particles joined with each other by silane crosslinking through a three dimensional silica network. In one embodiment, the hybrid silica gel includes small porous silica particles, and is made by a process that avoids energy intensive techniques.Type: GrantFiled: May 24, 2017Date of Patent: July 12, 2022Assignee: VKR HOLDING A/SInventors: Charles Joseph Rimsky, Jaswinder Kumar Sharma, Mahabir Singh Bhandari, Panagiotis George Datskos, Georgios Polyzos
-
Publication number: 20210175821Abstract: Devices, methods, and systems for electrostatic machines which can act as both an electric motor, converting electrical energy to mechanical energy, and an electric generator, converting mechanical energy to electrical energy, are described. In some embodiments, a spring positioned between two oppositely charged plates may be used as an electric motor and/or electric generator.Type: ApplicationFiled: December 4, 2020Publication date: June 10, 2021Inventors: Panagiotis George DATSKOS, Jochem WEBER, Blake Craig BOREN
-
Publication number: 20190152789Abstract: Compositions, methods, and articles of manufacture relating to a transparent/translucent insulating material formed by a hybrid silica gel composition made of porous silica particles joined with each other by silane crosslinking through a three dimensional silica network. In one embodiment, the hybrid silica gel includes small porous silica particles, and is made by a process that avoids energy intensive techniques.Type: ApplicationFiled: May 24, 2017Publication date: May 23, 2019Applicants: VKR HOLDING A/S, UT-BATTELLE, LLCInventors: CHARLES JOSEPH RIMSKY, JASWINDER KUMAR SHARMA, MAHABIR SINGH BHANDARI, PANAGIOTIS GEORGE DATSKOS, GEORGIOS POLYZOS
-
Patent number: 8988061Abstract: The present invention provides a system for detecting and analyzing at least one of an electric field and an electromagnetic field. The system includes a micro/nanomechanical oscillator which oscillates in the presence of at least one of the electric field and the electromagnetic field. The micro/nanomechanical oscillator includes a dense array of cantilevers mounted to a substrate. A charge localized on a tip of each cantilever interacts with and oscillates in the presence of the electric and/or electromagnetic field. The system further includes a subsystem for recording the movement of the cantilever to extract information from the electric and/or electromagnetic field. The system further includes a means of adjusting a stiffness of the cantilever to heterodyne tune an operating frequency of the system over a frequency range.Type: GrantFiled: February 10, 2011Date of Patent: March 24, 2015Assignees: U.S. Department of Energy, UT-Battelle, LLCInventors: Panagiotis George Datskos, Nickolay Lavrik
-
Patent number: 8505382Abstract: A system for ultrasensitive mass and/or force detection of this invention includes a mechanical oscillator driven to oscillate in a nonlinear regime. The mechanical oscillator includes a piezoelectric base with at least one cantilever resonator etched into the piezoelectric base. The cantilever resonator is preferably a nonlinear resonator which is driven to oscillate with a frequency and an amplitude. The system of this invention detects an amplitude collapse of the cantilever resonator at a bifurcation frequency as the cantilever resonator stimulated over a frequency range. As mass and/or force is introduced to the cantilever resonator, the bifurcation frequency shifts along a frequency axis in proportion to the added mass.Type: GrantFiled: February 10, 2011Date of Patent: August 13, 2013Assignee: UT-Battelle, LLCInventors: Panagiotis George Datskos, Nickolay V. Lavrik
-
Publication number: 20120206609Abstract: The present invention provides a system for detecting and analyzing at least one of an electric field and an electromagnetic field. The system includes a micro/nanomechanical oscillator which oscillates in the presence of at least one of the electric field and the electromagnetic field. The micro/nanomechanical oscillator includes a dense array of cantilevers mounted to a substrate. A charge localized on a tip of each cantilever interacts with and oscillates in the presence of the electric and/or electromagnetic field. The system further includes a subsystem for recording the movement of the cantilever to extract information from the electric and/or electromagnetic field. The system further includes a means of adjusting a stiffness of the cantilever to heterodyne tune an operating frequency of the system over a frequency range.Type: ApplicationFiled: February 10, 2011Publication date: August 16, 2012Inventors: Panagiotis George Datskos, Nickolay Lavrik
-
Publication number: 20120206594Abstract: A system for ultrasensitive mass and/or force detection of this invention includes a mechanical oscillator driven to oscillate in a nonlinear regime. The mechanical oscillator includes a piezoelectric base with at least one cantilever resonator etched into the piezoelectric base. The cantilever resonator is preferably a nonlinear resonator which is driven to oscillate with a frequency and an amplitude. The system of this invention detects an amplitude collapse of the cantilever resonator at a bifurcation frequency as the cantilever resonator stimulated over a frequency range. As mass and/or force is introduced to the cantilever resonator, the bifurcation frequency shifts along a frequency axis in proportion to the added mass.Type: ApplicationFiled: February 10, 2011Publication date: August 16, 2012Inventors: Panagiotis George Datskos, Nickolay V. Lavrik
-
Publication number: 20120056504Abstract: A pyroelectric thermal energy harvesting apparatus for generating an electric current includes a cantilevered layered pyroelectric capacitor extending between a first surface and a second surface, where the first surface includes a temperature difference from the second surface. The layered pyroelectric capacitor includes a conductive, bimetal top electrode layer, an intermediate pyroelectric dielectric layer and a conductive bottom electrode layer. In addition, a pair of proof masses is affixed at a distal end of the layered pyroelectric capacitor to face the first surface and the second surface, wherein the proof masses oscillate between the first surface and the second surface such that a pyroelectric current is generated in the pyroelectric capacitor due to temperature cycling when the proof masses alternately contact the first surface and the second surface.Type: ApplicationFiled: September 2, 2010Publication date: March 8, 2012Inventors: Scott Robert HUNTER, Panagiotis George DATSKOS
-
Publication number: 20090136734Abstract: A unidirectional resin infused panel. An illustrative embodiment of the unidirectional resin infused panel includes a plurality of laminated plies of a unidirectional fiber material each comprising a plurality of unidirectional reinforcing fibers. An unbound section is provided along the reinforcing fibers and generally free from fill-binding material. A first bound section having a fill-binding material is provided along the reinforcing fibers on a first side of the unbound section. A second bound section having a fill-binding material is provided along the reinforcing fibers on a second side of the unbound section. A cured resin is infused in the plurality of laminated plies of a unidirectional fiber material.Type: ApplicationFiled: November 26, 2007Publication date: May 28, 2009Inventors: Thomas R. Berkel, Panagiotis George
-
Publication number: 20090130376Abstract: A unidirectional fiber material. An illustrative embodiment of the unidirectional fiber material includes a plurality of unidirectional reinforcing fibers, an unbound section provided along the reinforcing fibers and generally free from fill-binding material, a first bound section having a fill-binding material provided along the reinforcing fibers on a first side of the unbound section and a second bound section having a fill-binding material provided along the reinforcing fibers on a second side of the unbound section. A method of fabricating a unidirectional fiber material is also disclosed.Type: ApplicationFiled: November 20, 2007Publication date: May 21, 2009Inventors: Thomas R. Berkel, Panagiotis George
-
Publication number: 20050051262Abstract: An apparatus and method for retaining composite structures, such as composite honeycomb structures, during manufacture are provided. The composite structure is cured on a mandrel that defines a layup surface with a grip feature. The grip feature is configured to engage the composite structure during manufacture and retain the structure in a predetermined configuration. A film adhesive can be provided between the grip feature and a tiedown ply that extends from the composite structure.Type: ApplicationFiled: September 9, 2003Publication date: March 10, 2005Inventors: Dave Erickson, Panagiotis George, Ryan Mortensen, Stuart Smith
-
Patent number: 6585863Abstract: The present invention relates to the photocatalytic degradation of organic compounds by zeolite and/or mesoporous material hosted photocatalysts. The present invention further relates to a method of treating a contaminated aqueous liquid or gaseous fluid containing organics using a combination of visible or solar light energy in the presence of a photocatalyst to decompose the organic impurities in the liquid or gaseous fluid.Type: GrantFiled: August 1, 2001Date of Patent: July 1, 2003Assignee: Procter & Gamble CompanyInventors: Lev Davydov, Paul Amaat France, Panagiotis George Smirniotis
-
Publication number: 20020108846Abstract: The present invention relates to the photocatalytic degradation of organic compounds by zeolite and/or mesoporous material hosted photocatalysts. The present invention further relates to a method of treating a contaminated aqueous liquid or gaseous fluid containing organics using a combination of visible or solar light energy in the presence of a photocatalyst to decompose the organic impurities in the liquid or gaseous fluid.Type: ApplicationFiled: August 1, 2001Publication date: August 15, 2002Applicant: The Procter & Gamble CompanyInventors: Lev Davydov, Paul Amaat France, Panagiotis George Smirniotis
-
Patent number: 6385363Abstract: An optical switch is formed by introducing light lengthwise to a microcantilever waveguide directed toward a second waveguide. The microcantilever is caused to bend by light emitted from a laser diode orthogonal to the microcantilever and at an energy above the band gap, which induces stress as a result of the generation of free carriers. The bending of the waveguide directs the carrier frequency light to a second receptor waveguide or to a non-responsive surface. The switch may be combined in an array to perform multiple switching functions rapidly and at low energy losses.Type: GrantFiled: March 26, 1999Date of Patent: May 7, 2002Assignee: U.T. Battelle LLCInventors: Slobodan Rajic, Panagiotis George Datskos, Charles M. Egert