Patents by Inventor Stephen Forrest
Stephen Forrest 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: 20250110134Abstract: This disclosure relates to single immunoglobulin variable domains with amino substitutions that result in improved thermal stability, cellular expression, and other biophysical properties.Type: ApplicationFiled: January 10, 2023Publication date: April 3, 2025Inventors: Stephen John Demarest, Michael Lajos Gallo, David Forrest Thieker, Brian Arthur Kuhlman
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Patent number: 12026095Abstract: In accordance with various aspects of the invention, a recall transaction is issued if a tag filter entry needs to be freed up for an incoming transaction. Directory entries chosen for a recall transaction are pushed into a fully associative structure called victim buffer. If this structure gets full, then an entry is selected from entries inside the victim buffer for the recall.Type: GrantFiled: November 21, 2022Date of Patent: July 2, 2024Assignee: ARTERIS, INC.Inventors: David A. Kruckemyer, Craig Stephen Forrest
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Patent number: 11895853Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the OPV or solar cell includes a first electrode (e.g., cathode); a second electrode (e.g., anode); an active layer positioned between the first electrode and the second electrode; and a channel layer positioned between the first electrode and the active layer, wherein the channel layer is configured to laterally disperse a charge across the channel layer. In certain examples, the first electrode is arranged in a grid structure having a plurality of electrode segments and a respective opening between adjacent segments of the first electrode.Type: GrantFiled: December 20, 2019Date of Patent: February 6, 2024Assignee: The Regents of the University of MichiganInventors: Stephen Forrest, Quinn Burlingame, Caleb Coburn
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Patent number: 11761076Abstract: A microfluidic device for use with a microfluidic delivery system, such as an organic vapor jet printing device, includes a glass layer that is directly bonded to a microfabricated die and a metal plate via a double anodic bond. The double anodic bond is formed by forming a first anodic bond at an interface of the microfabricated die and the glass layer, and forming a second anodic bond at an interface of the metal plate and the glass layer, where the second anodic bond is formed using a voltage that is lower than the voltage used to form the first anodic bond. The second anodic bond is formed with the polarity of the voltage reversed with respect to the glass layer and the formation of the first anodic bond. The metal plate includes attachment features that allow removal of the microfluidic device from a fixture.Type: GrantFiled: May 3, 2021Date of Patent: September 19, 2023Assignee: The Regents of the University of MichiganInventors: Stephen Forrest, Gregory McGraw, Siddharth Harikrishna Mohan, Diane L. Peters
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Publication number: 20230079078Abstract: In accordance with various aspects of the invention, a recall transaction is issued if a tag filter entry needs to be freed up for an incoming transaction. Directory entries chosen for a recall transaction are pushed into a fully associative structure called victim buffer. If this structure gets full, then an entry is selected from entries inside the victim buffer for the recall.Type: ApplicationFiled: November 21, 2022Publication date: March 16, 2023Applicant: ARTERIS, INC.Inventors: David A. KRUCKEMYER, Craig Stephen FORREST
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Patent number: 11507510Abstract: In accordance with various aspects of the invention, a recall transaction is issued if a tag filter entry needs to be freed up for an incoming transaction. Directory entries chosen for a recall transaction are pushed into a fully associative structure called victim buffer. If this structure gets full, then an entry is selected from entries inside the victim buffer for the recall.Type: GrantFiled: December 28, 2018Date of Patent: November 22, 2022Assignee: Arteris, Inc.Inventors: Craig Stephen Forrest, David A. Kruckemyer
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Patent number: 11374172Abstract: Methods and systems for organic vapor jet deposition are provided, where an exhaust is disposed between adjacent nozzles. The exhaust may reduce pressure buildup in the nozzles and between the nozzles and the substrate, leading to improved deposition profiles, resolution, and improved nozzle-to-nozzle uniformity. The exhaust may be in fluid communication with an ambient vacuum, or may be directly connected to a vacuum source.Type: GrantFiled: December 21, 2010Date of Patent: June 28, 2022Assignees: The Regents of the University of Michigan, The Trustees of Princeton UniversityInventors: Stephen Forrest, Richard Lunt
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Patent number: 11292245Abstract: A device includes a nozzle including a discharge end for discharging a fluid, a shutter plate including an aperture, the shutter plate positioned at the discharge end of the nozzle, a plurality of tethers coupled to the shutter plate, and a plurality of electrostatic actuators. Each of the plurality of electrostatic actuators are coupled to one or more of the plurality of tethers. The plurality of electrostatic actuators are configured to move the shutter plate between an open position and a closed position relative the discharge end of the nozzle. In the open position, the aperture is in fluid communication with the discharge end of the nozzle to permit fluid from the discharge end of the nozzle to flow through the aperture. In the closed position, at least a portion of the shutter plate inhibits fluid from the discharge end of the nozzle from flowing through the aperture.Type: GrantFiled: June 3, 2020Date of Patent: April 5, 2022Assignees: Trustees of Boston University, The Regents of the University of MichiganInventors: David J. Bishop, Lawrence Barrett, Stephen Forrest
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Patent number: 11237965Abstract: A cache coherent system includes a directory with more than one snoop filter, each of which stores information in a different set of snoop filter entries. Each snoop filter is associated with a subset of all caching agents within the system. Each snoop filter uses an algorithm chosen for best performance on the caching agents associated with the snoop filter. The number of snoop filter entries in each snoop filter is primarily chosen based on the caching capacity of just the caching agents associated with the snoop filter. The type of information stored in each snoop filter entry of each snoop filter is chosen to meet the desired filtering function of the specific snoop filter.Type: GrantFiled: December 31, 2014Date of Patent: February 1, 2022Assignee: ARTERIS, INC.Inventors: Craig Stephen Forrest, David A. Kruckemyer
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Publication number: 20210254207Abstract: A microfluidic device for use with a microfluidic delivery system, such as an organic vapor jet printing device, includes a glass layer that is directly bonded to a microfabricated die and a metal plate via a double anodic bond. The double anodic bond is formed by forming a first anodic bond at an interface of the microfabricated die and the glass layer, and forming a second anodic bond at an interface of the metal plate and the glass layer, where the second anodic bond is formed using a voltage that is lower than the voltage used to form the first anodic bond. The second anodic bond is formed with the polarity of the voltage reversed with respect to the glass layer and the formation of the first anodic bond. The metal plate includes attachment features that allow removal of the microfluidic device from a fixture.Type: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Stephen Forrest, Gregory McGraw, Siddharth Harikrishna Mohan, Diane L. Peters
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Patent number: 11080191Abstract: A cache coherent system includes a directory with more than one snoop filter, each of which stores information in a different set of snoop filter entries. Each snoop filter is associated with a subset of all caching agents within the system. Each snoop filter uses an algorithm chosen for best performance on the caching agents associated with the snoop filter. The number of snoop filter entries in each snoop filter is primarily chosen based on the caching capacity of just the caching agents associated with the snoop filter. The type of information stored in each snoop filter entry of each snoop filter is chosen to meet the desired filtering function of the specific snoop filter.Type: GrantFiled: March 18, 2020Date of Patent: August 3, 2021Assignee: ARTERIS, INC.Inventors: Craig Stephen Forrest, David A. Kruckemyer
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Publication number: 20210206162Abstract: A device includes a nozzle including a discharge end for discharging a fluid, a shutter plate including an aperture, the shutter plate positioned at the discharge end of the nozzle, a plurality of tethers coupled to the shutter plate, and a plurality of electrostatic actuators. Each of the plurality of electrostatic actuators are coupled to one or more of the plurality of tethers. The plurality of electrostatic actuators are configured to move the shutter plate between an open position and a closed position relative the discharge end of the nozzle. In the open position, the aperture is in fluid communication with the discharge end of the nozzle to permit fluid from the discharge end of the nozzle to flow through the aperture. In the closed position, at least a portion of the shutter plate inhibits fluid from the discharge end of the nozzle from flowing through the aperture.Type: ApplicationFiled: June 3, 2020Publication date: July 8, 2021Inventors: David J. Bishop, Lawrence Barrett, Stephen Forrest
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Patent number: 11021785Abstract: A microfluidic device for use with a microfluidic delivery system, such as an organic vapor jet printing device, includes a glass layer that is directly bonded to a microfabricated die and a metal plate via a double anodic bond. The double anodic bond is formed by forming a first anodic bond at an interface of the microfabricated die and the glass layer, and forming a second anodic bond at an interface of the metal plate and the glass layer, where the second anodic bond is formed using a voltage that is lower than the voltage used to form the first anodic bond. The second anodic bond is formed with the polarity of the voltage reversed with respect to the glass layer and the formation of the first anodic bond. The metal plate includes attachment features that allow removal of the microfluidic device from a fixture.Type: GrantFiled: December 13, 2017Date of Patent: June 1, 2021Assignees: THE REGENTS OF THE UNIVERSITY OF MICHIGAN, UNIVERSAL DISPLAY CORPORATIONInventors: Stephen Forrest, Gregory McGraw, Siddharth Harikrishna Mohan, Diane L. Peters
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Patent number: 11015259Abstract: A method for producing a laminated shim includes subjecting a shim stock to a plasma electrolytic oxidization (PEO) process to create a PEO shim, applying an adhesive layer of an adhesive to a surface of the PEO shim, stacking at least one other PEO shim onto the adhesive layer of the PEO shim to create a stack of PEO shims, and pressing the stack of PEO shims together to create a PEO coated peelable laminate.Type: GrantFiled: February 15, 2017Date of Patent: May 25, 2021Assignee: Voss Innovative Technologies CorporationInventors: Peter Voss, Stephen Forrest, Kapilan Paramanathan, Deoram Singh
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Patent number: 10971542Abstract: Systems and methods including bonding two or more separately formed circuit layers are provided using, for example, cold welding techniques. Processing techniques may be provided for combining inorganic and/or organic semiconductor devices in apparatus including, for example, microchips, optoelectronic devices, such as solar cells, photodetectors and organic light emitting diodes (OLEDs), and other apparatus with multi-layer circuitry. Methods of bonding preformed circuit layers may include the use of stamping and pressure bonding contacts of two or more circuit layers together. Such methods may find applicability, for example, in bonding circuitry to shaped substrates, including various rounded and irregular shapes, and may be used to combine devices with different structural properties, e.g. from different materials systems.Type: GrantFiled: September 9, 2019Date of Patent: April 6, 2021Assignee: The Regents of the University of MichiganInventors: Stephen Forrest, Xin Xu, Christopher Kyle Renshaw
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Publication number: 20200235325Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the OPV or solar cell includes a first electrode (e.g., cathode); a second electrode (e.g., anode); an active layer positioned between the first electrode and the second electrode; and a channel layer positioned between the first electrode and the active layer, wherein the channel layer is configured to laterally disperse a charge across the channel layer. In certain examples, the first electrode is arranged in a grid structure having a plurality of electrode segments and a respective opening between adjacent segments of the first electrode.Type: ApplicationFiled: December 20, 2019Publication date: July 23, 2020Inventors: Stephen Forrest, Quinn Burlingame, Caleb Coburn
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Patent number: 10712174Abstract: A system includes a plurality of sensors measuring a physical parameter; a processing unit communicatively coupled to the plurality of sensors and configured to receive sensor data from each of the plurality of sensors; wherein the processing unit is further configured to compare rates of change between sensor data for each individual sensor of the plurality of sensors and each of the other individual sensors of the plurality of sensors; wherein the processing unit is further configured to perform a first action when the rate of change of each of the plurality of sensors is within a first threshold of all of the other plurality of sensors; and wherein the processing unit is further configured to perform a second action when the rate of change of at least one of the plurality of sensors is not within the first threshold of at least another of the plurality of sensors.Type: GrantFiled: October 10, 2012Date of Patent: July 14, 2020Assignee: Honeywell International Inc.Inventors: Stephen Forrest Rogoff, LeRoy Ernest Vetsch
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Publication number: 20200218657Abstract: A cache coherent system includes a directory with more than one snoop filter, each of which stores information in a different set of snoop filter entries. Each snoop filter is associated with a subset of all caching agents within the system. Each snoop filter uses an algorithm chosen for best performance on the caching agents associated with the snoop filter. The number of snoop filter entries in each snoop filter is primarily chosen based on the caching capacity of just the caching agents associated with the snoop filter. The type of information stored in each snoop filter entry of each snoop filter is chosen to meet the desired filtering function of the specific snoop filter.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Applicant: ARTERIS, INC.Inventors: Craig Stephen FORREST, David A. KRUCKEMYER
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Publication number: 20200168658Abstract: Systems and methods including bonding two or more separately formed circuit layers are provided using, for example, cold welding techniques. Processing techniques may be provided for combining inorganic and/or organic semiconductor devices in apparatus including, for example, microchips, optoelectronic devices, such as solar cells, photodetectors and organic light emitting diodes (OLEDs), and other apparatus with multi-layer circuitry. Methods of bonding preformed circuit layers may include the use of stamping and pressure bonding contacts of two or more circuit layers together. Such methods may find applicability, for example, in bonding circuitry to shaped substrates, including various rounded and irregular shapes, and may be used to combine devices with different structural properties, e.g. from different materials systems.Type: ApplicationFiled: September 9, 2019Publication date: May 28, 2020Inventors: Stephen Forrest, Xin Xu, Christopher Kyle Renshaw
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Patent number: 10283737Abstract: A method for forming an electronic device such as a passive color OLED display. Bottom electrodes are patterned onto a substrate in rows. Raised posts formed by photoresist are patterned into columns oriented orthogonally to the bottom row electrodes. One or more organic layers, such as R, G, B organic emissive layers are patterned over the raised posts and bottom electrodes using organic vapor jet printing (OVJP). An upper electrode layer is applied over the entire device and forms electrically isolated columnar electrodes due to discontinuities in the upper electrode layer created by the raised columnar posts. This permits patterning of the upper electrodes over the organic layers without using photolithography. A device formed by this method is also described.Type: GrantFiled: October 28, 2013Date of Patent: May 7, 2019Assignee: The Regents of the University of MichiganInventors: Stephen Forrest, Gregory McGraw