Patents by Inventor A. Douglas Stone
A. Douglas Stone 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: 20240139354Abstract: Some embodiments relate to imageable radioisotopic microspheres. In some embodiments, the imageable microspheres are radiolabeled with imageable radioisotopes. In some embodiments, the imageable radioisotope is directly coupled to a surface of a substrate of the microsphere. In some embodiments, the imageable microspheres can be used as surrogate particles to predict the distribution of therapeutic microspheres comprising radiotherapeutic isotopes.Type: ApplicationFiled: January 8, 2024Publication date: May 2, 2024Applicants: Boston Scientific Medical Device Limited, University of Virginia Patent FoundationInventors: James Radford Stone, Kiel Douglas Neumann, Matthew Robert Dreher
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Patent number: 9041996Abstract: Described is a method of controlling the absorption of light in a cavity, a system in which absorption is so controlled, and an interferometer embodying the underlying physical concept. Materials can be made to completely absorb incident light when the light is imposed in a specific pattern of illumination. Coherent perfect absorption, as the process is referred to, is achieved when a cavity is illuminated coherently and monochromatically by the time-reverse of the output of a lasing mode. Varying the parameters of the incident light and/or of the cavity allows the absorption of the incident light by the cavity to be controlled; enhanced or even reduced.Type: GrantFiled: March 25, 2014Date of Patent: May 26, 2015Assignee: Yale UniversityInventors: A. Douglas Stone, Hui Cao, Li Ge, Yidong Chong
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Publication number: 20150107373Abstract: A process for measuring the friability of a material, such as a polymer bale, may include measuring the amount of force required to break-up a portion of the material. A corresponding testing apparatus for measuring the friability may include a device configured for breaking-up the portion of the material and measuring the force required to cause the break-up to occur.Type: ApplicationFiled: October 22, 2014Publication date: April 23, 2015Inventors: Errol OLIVIER, Dilipkumar PADLIYA, Samuel Douglas STONE, Bruce STONE, Mark KUIJPERS
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Publication number: 20140204442Abstract: Described is a method of controlling the absorption of light in a cavity, a system in which absorption is so controlled, and an interferometer embodying the underlying physical concept. Materials can be made to completely absorb incident light when the light is imposed in a specific pattern of illumination. Coherent perfect absorption, as the process is referred to, is achieved when a cavity is illuminated coherently and monochromatically by the time-reverse of the output of a lasing mode. Varying the parameters of the incident light and/or of the cavity allows the absorption of the incident light by the cavity to be controlled; enhanced or even reduced.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Applicant: Yale UniversityInventors: A. Douglas Stone, Hui Cao, Li Ge, Yidong Chong
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Patent number: 8651736Abstract: A temperature measurement system includes a temperature probe including a temperature sensor. The system also includes a reader, and a controller in communication with the temperature sensor and the reader. The system further includes a container housing a plurality of probe covers associated with the temperature probe. The container includes an information feature providing information related to the plurality of probe covers. The reader is configured to read the information and direct a signal to the controller indicative of the information.Type: GrantFiled: February 3, 2012Date of Patent: February 18, 2014Assignee: Welch Allyn, Inc.Inventors: Matthew D. Mullin, John A. Lane, Scott A. Martin, Craig M. Meyerson, David E. Quinn, Ray Douglas Stone
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Publication number: 20130202011Abstract: A temperature measurement system includes a temperature probe including a temperature sensor. The system also includes a reader, and a controller in communication with the temperature sensor and the reader. The system further includes a container housing a plurality of probe covers associated with the temperature probe. The container includes an information feature providing information related to the plurality of probe covers. The reader is configured to read the information and direct a signal to the controller indicative of the information.Type: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Inventors: Matthew D. Mullin, John A. Lane, Scott A. Martin, Craig M. Meyerson, David E. Quinn, Ray Douglas Stone
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Publication number: 20120134002Abstract: Described is a method of controlling the absorption of light in a cavity, a system in which absorption is so controlled, and an interferometer embodying the underlying physical concept. Materials can be made to completely absorb incident light when the light is imposed in a specific pattern of illumination. Coherent perfect absorption, as the process is referred to, is achieved when a cavity is illuminated coherently and monochromatically by the time-reverse of the output of a lasing mode. Varying the parameters of the incident light and/or of the cavity allows the absorption of the incident light by the cavity to be controlled; enhanced or even reduced.Type: ApplicationFiled: June 29, 2010Publication date: May 31, 2012Inventor: A. Douglas Stone
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Patent number: 7640586Abstract: A system, method, and computer program product for scanning downloaded files providing improved performance relative to conventional download scanning techniques by performing the download and scanning functions in parallel and random order, thus improving overall performance. A method of scanning a requested file for a computer malware comprising the steps of: receiving a request from a user system to transfer a file from a server. Starting to transfer said file, and at the same time, handing a partial copy of the file to computer malware scanning software, receiving requests from the computer malware scanning software for data comprising additional arbitrary portions of the requested file, transferring only the requested portion of the file and supplying the requested data to the computer malware scanning software until the malware scanning software can produce a clean/infected indication. Then completing the transfer of the entire file from the server and handing it off to the user system in parallel.Type: GrantFiled: July 7, 2003Date of Patent: December 29, 2009Assignee: McAfee, Inc.Inventors: Tommy Olaus Johnson, Eric David O'Brien, Douglas Stone Kilpatrick
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Patent number: 7031365Abstract: A locally-outcoupled optical resonator has whispering gallery modes existing in a nearly circular resonator. Light is outcoupled by providing a local perturbing feature on the perimeter of the locally-outcoupled cavity resonator. The perturbing feature provides an outcoupling or loss mechanism that asymmetrically interacts with circulating whispering gallery modes, thereby making the resonator capable of uni-directional output.Type: GrantFiled: May 2, 2003Date of Patent: April 18, 2006Assignee: Xerox CorporationInventors: Michael A. Kneissl, Noble M. Johnson, David K. Biegelsen, Richard K. Chang, A. Douglas Stone, Grace D. Chern, Hakan E. Tureci, Joseph Zyss
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Publication number: 20040218654Abstract: A locally-outcoupled optical resonator has whispering gallery modes existing in a nearly circular resonator. Light is outcoupled by providing a local perturbing feature on the perimeter of the locally-outcoupled cavity resonator. The perturbing feature provides an outcoupling or loss mechanism that asymmetrically interacts with circulating whispering gallery modes, thereby making the resonator capable of uni-directional output.Type: ApplicationFiled: May 2, 2003Publication date: November 4, 2004Applicant: Xerox CorporationInventors: Michael A. Kneissl, Noble M. Johnson, David K. Biegelsen, Richard K. Chang, A. Douglas Stone, Grace D. Chern, Hakan E. Tureci, Joseph Zyss
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Patent number: 6333944Abstract: A solid state laser comprises a cavity resonator in the form of a generally cylindrical body and, located within the resonator, an active region which generates lasing light when suitably pumped. The resonator has a relatively high effective refractive index (n>2 and typically n>3) is sufficiently deformed from circularity so as to support at least one librational mode (e.g., a V-shaped or a bow-tie mode, the latter being presently preferred for generating relatively high power, directional outputs). Specifically described is a Group III-V compound semiconductor, quantum cascade (QC), micro-cylinder laser in which the resonator has a flattened quadrupolar deformation from circularity. This laser exhibits both a highly directional output emission and a three-order of magnitude increase in optical output power compared to conventional semiconductor micro-cylinder QC lasers having circularly symmetric resonators.Type: GrantFiled: June 12, 2000Date of Patent: December 25, 2001Assignee: Yale UniversityInventors: Federico Capasso, Alfred Yi Cho, Claire F. Gmachl, Deborah Lee Sivco, Evgueni E. Narimanov, Alfred Douglas Stone
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Patent number: 6259717Abstract: An asymmetric resonant optical cavity is constructed of an optically transmissive dielectric material having an index of refraction n. The cavity is configured as an oval cross-section of area A, having major and minor axes. An optical input couples an optical signal of wavelength &lgr; into the cavity. An output coupler is positioned in a near-field region of a surface point of the cavity thereby enabling coupling thereinto of optical energy of wavelength &lgr;. The surface point on the cavity is determined by a minimum value of an expression which relates the Sin of the angle of incidence, at an angle ø, to the curvature of the outer surface of the cavity.Type: GrantFiled: April 7, 1998Date of Patent: July 10, 2001Assignee: Yale UniversityInventors: Alfred Douglas Stone, Richard Kounai Chang, Jens Uwe Noeckel
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Patent number: 6134257Abstract: A solid state laser comprises a cavity resonator in the form of a generally cylindrical body and, located within the resonator, an active region which generates lasing light when suitably pumped. The resonator has a relatively high effective refractive index (n>2 and typically n>3) is sufficiently deformed from circularity so as to support at least one librational mode (e.g., a V-shaped or a bow-tie mode, the latter being presently preferred for generating relatively high power, directional outputs). Specifically described is a Group III-V compound semiconductor, quantum cascade (QC), micro-cylinder laser in which the resonator has a flattened quadrupolar deformation from circularity. This laser exhibits both a highly directional output emission and a three-order of magnitude increase in optical output power compared to conventional semiconductor micro-cylinder QC lasers having circularly symmetric resonators.Type: GrantFiled: April 21, 1998Date of Patent: October 17, 2000Assignee: Lucent Technologies Inc.Inventors: Federico Capasso, Alfred Yi Cho, Jerome Faist, Claire F. Gmachl, Deborah Lee Sivco, Evgueni E. Narimanov, Alfred Douglas Stone, Jens Uwe Noeckel
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Patent number: 5742633Abstract: An asymmetric resonant optical cavity is constructed of an optically transmissive dielectric material having an index of refraction n. The cavity is configured as an oval cross-section of area A, having major and minor axes. An optical input couples an optical signal of wavelength .lambda. into the cavity. An output coupler is positioned in a near-field region of a surface point of the cavity, thereby enabling coupling thereinto of optical energy of wavelength .lambda.. The surface point on the cavity is determined by a minimum value of an expression which relates the Sin of the angle of incidence, at an angle .phi., to the curvature of the outer surface of the cavity. Further, the index of refraction n of the cavity's dielectric is chosen so as to avoid emission of physically separated beams at the point of exit of a beam.Type: GrantFiled: October 2, 1996Date of Patent: April 21, 1998Assignee: Yale UniversityInventors: Alfred Douglas Stone, Richard Kounai Chang, Jens Uwe Noeckel
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Patent number: 4958624Abstract: A laryngeal blade assembly consisting of a metallic blade or spatula and two light assemblies that are selectively mounted on the blade. One light assembly has a fiber optic tube and a base block that with the blade will fit a fiber optic handle. The other light assembly has an incandescent bulb in the end of the light tube and a base block that with the blade fits an incandescent handle.Type: GrantFiled: March 31, 1989Date of Patent: September 25, 1990Assignee: Welch Allyn, Inc.Inventors: R. Douglas Stone, Thomas W. Turner
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Patent number: D622807Type: GrantFiled: July 2, 2009Date of Patent: August 31, 2010Inventor: Ray Douglas Stone
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Patent number: D641453Type: GrantFiled: June 25, 2010Date of Patent: July 12, 2011Inventor: Ray Douglas Stone