Patents by Inventor Andrew Hood
Andrew Hood 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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Patent number: 11676976Abstract: A PIN photodetector includes an n-type semiconductor layer, an n-type semiconductor cap layer, a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1, and an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions. The plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.Type: GrantFiled: November 2, 2020Date of Patent: June 13, 2023Assignee: Attollo Engineering, LLCInventors: Jonathan Geske, Andrew Hood, Michael MacDougal
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Patent number: 11495562Abstract: A hybridized image sensor includes a first die and a second die. The first die includes a first surface, a first plurality of conductive bumps fabricated on the first surface, and a first alignment feature fabricated on the first surface. The second die includes a second surface, a second plurality of conductive bumps fabricated on the second surface, and second alignment features fabricated on the second surface, wherein the first alignment features interact with the second alignment features to align the first plurality of conductive bumps with the second plurality of conductive bumps.Type: GrantFiled: December 27, 2019Date of Patent: November 8, 2022Assignee: Attollo Engineering, LLCInventors: Michael MacDougal, Andrew Hood
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Publication number: 20210202420Abstract: A hybridized image sensor includes a first die and a second die. The first die includes a first surface, a first plurality of conductive bumps fabricated on the first surface, and a first alignment feature fabricated on the first surface. The second die includes a second surface, a second plurality of conductive bumps fabricated on the second surface, and second alignment features fabricated on the second surface, wherein the first alignment features interact with the second alignment features to align the first plurality of conductive bumps with the second plurality of conductive bumps.Type: ApplicationFiled: December 27, 2019Publication date: July 1, 2021Inventors: Michael MacDougal, Andrew Hood
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Publication number: 20210082973Abstract: A PIN photodetector includes an n-type semiconductor layer, an n-type semiconductor cap layer, a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1, and an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions. The plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.Type: ApplicationFiled: November 2, 2020Publication date: March 18, 2021Inventors: Jonathan Geske, Andrew Hood, Michael MacDougal
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Patent number: 10883336Abstract: A method of cementing an oil or gas well for abandonment comprises cutting the production tubing 6 above the production packer 8, setting a tubing plug 9 in the tubing and then cutting the tubing. A bridge plug may be installed at the level of the cut, which spans the full diameter of the well casing 3. An agitator assembly 20 comprising an agitator 24, packer 21 and burst sub 23, with a running tool fitted to the top, is run down the tubing on wire line. Cement is then injected into the tubing 6, which flows through the agitator assembly and causes the tubing to vibrate. The cement fills the tubing but also flows back up the A annulus between the casing and production tubing. Vibration of the tubing assists the formation of a good quality cement plug extending all around the annulus over a substantial length of the well.Type: GrantFiled: July 15, 2016Date of Patent: January 5, 2021Assignee: CONOCOPHILLIPS COMPANYInventors: Jean-Marie Prieur, Andrew Hood, Ian Milne, Stephen Cromar
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Patent number: 10854646Abstract: A PIN photodetector includes an n-type semiconductor layer, an n-type semiconductor cap layer, a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1, and an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions. The plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.Type: GrantFiled: October 19, 2018Date of Patent: December 1, 2020Assignee: ATTOLLO ENGINEERING, LLCInventors: Jonathan Geske, Andrew Hood, Michael MacDougal
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Patent number: 10651934Abstract: A modulated light receiver includes a photo-sensitive element, an electromagnetic interference (EMI) detection circuit, and a decision-making controller. The photo-sensitive element is configured to generate an electrical signal in response to modulated light. The electromagnetic interference (EMI) detection circuit is configured to generate an electrical signal in response to EMI. The decision-making controller is electrically coupled to the photo-sensitive element and the EMI detection circuit, wherein the decision-making controller generates an output based on the inputs received from the photo-sensitive element and the EMI detection circuit.Type: GrantFiled: September 20, 2018Date of Patent: May 12, 2020Assignee: Attollo Engineering, LLCInventors: Jonathan Geske, Andrew Hood
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Publication number: 20200127023Abstract: A PIN photodetector includes an n-type semiconductor layer, an n-type semiconductor cap layer, a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1, and an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions. The plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.Type: ApplicationFiled: October 19, 2018Publication date: April 23, 2020Inventors: Jonathan Geske, Andrew Hood, Michael MacDougal
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Publication number: 20200096621Abstract: A modulated light receiver includes a photo-sensitive element, an electromagnetic interference (EMI) detection circuit, and a decision-making controller. The photo-sensitive element is configured to generate an electrical signal in response to modulated light. The electromagnetic interference (EMI) detection circuit is configured to generate an electrical signal in response to EMI. The decision-making controller is electrically coupled to the photo-sensitive element and the EMI detection circuit, wherein the decision-making controller generates an output based on the inputs received from the photo-sensitive element and the EMI detection circuit.Type: ApplicationFiled: September 20, 2018Publication date: March 26, 2020Inventors: Jonathan Geske, Andrew Hood
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Publication number: 20190331343Abstract: An oven splatter guard comprising: a flexible screen configured to at least reduce splatter in a working oven wherein the flexible screen is not self-supporting; and a collapsible support means configured to support the flexible screen.Type: ApplicationFiled: September 27, 2017Publication date: October 31, 2019Inventor: Andrew HOOD
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Patent number: 9915073Abstract: An apparatus and method for siding a building wherein the apparatus comprises an elongate planar member extending between first and second edges, top and bottom edges and having front and rear surfaces and at least one mounting block extending between first and second edges, top and bottom edges and having a rear surface wherein the at least one mounting block extends from the rear surface of the elongate planar member proximate to the top edge of the elongate planar member. The method comprises aligning each of the at least one mounting block of the siding panel with a stud location in a vertical wall and fastening the siding panel to the studs in the vertical wall through the at least one mounting block with a plurality of fasteners, so as to create a rainscreen gap between the elongate planar member and the vertical wall.Type: GrantFiled: December 12, 2016Date of Patent: March 13, 2018Inventor: Andrew Hood
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Publication number: 20170016305Abstract: A method of cementing an oil or gas well for abandonment comprises cutting the production tubing 6 above the production packer 8, setting a tubing plug 9 in the tubing and then cutting the tubing. A bridge plug may be installed at the level of the cut, which spans the full diameter of the well casing 3. An agitator assembly 20 comprising an agitator 24, packer 21 and burst sub 23, with a running tool fitted to the top, is run down the tubing on wire line. Cement is then injected into the tubing 6, which flows through the agitator assembly and causes the tubing to vibrate. The cement fills the tubing but also flows back up the A annulus between the casing and production tubing. Vibration of the tubing assists the formation of a good quality cement plug extending all around the annulus over a substantial length of the well.Type: ApplicationFiled: July 15, 2016Publication date: January 19, 2017Inventors: Jean-Marie PRIEUR, Andrew HOOD, Ian MILNE, Stephen CROMAR
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Patent number: 9324900Abstract: A method of fabricating a superlattice structure requires that atoms of a first III-V semiconductor compound be introduced into a vacuum chamber such that the atoms are deposited uniformly on a substrate. Atoms of at least one additional III-V compound are also introduced such that the atoms of the two III-V compounds form a repeating superlattice structure of alternating thin layers. Atoms of a surfactant are also introduced into the vacuum chamber while the III-V semiconductor compounds are being introduced, or immediately thereafter, such that the surfactant atoms act to improve the quality of the resulting SL structure. The surfactant is preferably bismuth, and the III-V semiconductor compounds are preferably GaSb along with either InAs or InAsSb; atoms of each material are preferably introduced using molecular beam epitaxy. The resulting superlattice structure is suitably used to form at least a portion of an IR photodetector.Type: GrantFiled: August 1, 2013Date of Patent: April 26, 2016Assignee: TELEDYNE SCIENTIFIC & IMAGING, LLCInventors: Allan Evans, William Tennant, Andrew Hood
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Patent number: 9276159Abstract: A structure comprised of an InAsSb layer adjacent to a GaSb layer, with the adjacent InAsSb and GaSb layers repeating to form a superlattice (SL). The structure is preferably an unstrained SL, wherein the composition of the InAsSb layer is InAs0.91Sb0.09; the InAs0.91 Sb0.09 layers are preferably lattice-matched to the GaSb layers. The SL structure is preferably arranged such that the Sb component of the InAsSb layers reduces the strain in the SL structure so that it is less than that found in an InAs/GaSb Type-II Strained Layer Superlattice (SLS). The present SL structure is suitably employed as part of an infrared photodetector.Type: GrantFiled: December 21, 2012Date of Patent: March 1, 2016Assignee: TELEDYNE SCIENTIFIC & IMAGING, LLCInventors: Allan Evans, William Tennant, Andrew Hood
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Publication number: 20150037925Abstract: A method of fabricating a superlattice structure requires that atoms of a first III-V semiconductor compound be introduced into a vacuum chamber such that the atoms are deposited uniformly on a substrate. Atoms of at least one additional III-V compound are also introduced such that the atoms of the two III-V compounds form a repeating superlattice structure of alternating thin layers. Atoms of a surfactant are also introduced into the vacuum chamber while the III-V semiconductor compounds are being introduced, or immediately thereafter, such that the surfactant atoms act to improve the quality of the resulting SL structure. The surfactant is preferably bismuth, and the III-V semiconductor compounds are preferably GaSb along with either InAs or InAsSb; atoms of each material are preferably introduced using molecular beam epitaxy. The resulting superlattice structure is suitably used to form at least a portion of an IR photodetector.Type: ApplicationFiled: August 1, 2013Publication date: February 5, 2015Inventors: ALLAN EVANS, William Tennant, Andrew Hood
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Publication number: 20140032747Abstract: A sequence of data representing network behaviour is analysed using the technique of delay space embedding. This causes a sequence of tuples to be constructed from the data sequence. This sequence of tuples can then be represented in a multi-dimensional representation space, which allows detection of network behaviour divergent from a norm.Type: ApplicationFiled: July 23, 2013Publication date: January 30, 2014Inventors: Rachel Craddock, David Harvey, Andrew Hood
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Publication number: 20030030797Abstract: Solid state devise for the calibration of microplate fluorescence and absorption readers and spectrometers is described. When present in a single moiety, the disclosed device can tell if the lamp photomultiplier tube and optical alignment of the microplate reader or spectrometer deviates from its true value. When present as graded calibration pieces, the disclosed device can be used to calibrate a fluorescence or absorption reader. Calibration pieces are shaped, polished and coated with color absorbing or fluorescent standard to fit in microplate holding trays or spectrometers which are commercially available. Solid state devices are stable and durable and very inert to manipulations and thus are more reliable and unfaltering than solutions for absorption and fluorescence microplate readers or spectrometers.Type: ApplicationFiled: February 19, 2002Publication date: February 13, 2003Inventors: Henry Palladino, Andrew Hood
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Patent number: 6348965Abstract: Solid state devise for the calibration of microplate fluorescence and absorption readers and spectrometers is described. When present in a single moiety, the disclosed device can tell if the lamp photomultiplier tube and optical alignment of the microplate reader or spectrometer deviates from its true value. When present as graded calibration pieces, the disclosed device can be used to calibrate a fluorescence or absorption reader. Calibration pieces are shaped, polished and coated with color absorbing or fluorescent standard to fit in microplate holding trays or spectrometers which are commercially available. Solid state devices are stable and durable and very inert to manipulations and thus are more reliable and unfaltering than solutions for absorption and fluorescence microplate readers or spectrometers.Type: GrantFiled: September 24, 1999Date of Patent: February 19, 2002Inventors: Henry Palladino, Andrew Hood