Patents by Inventor Howard A. Stone

Howard A. 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).

  • Publication number: 20240082475
    Abstract: A blood processing system includes a collection line for carrying blood, a blood separation device for separating the blood into first and second fractions, a plasma delivery line for delivering the first blood fraction to an adsorption device, and a peristaltic pump. The adsorption device adsorbs plasma of the first blood fraction. Portions of the collection and plasma delivery lines are positioned in a channel of the peristaltic pump, and the peristaltic pump causes the blood to flow through the collection line at a first flow rate and causes the first blood fraction to flow through the plasma delivery line at a second flow rate that is less than the first flow rate. In some implementations, the collection and plasma delivery lines are tubes having different internal diameters facilitating such differential flow rates. In some implementations, the peristaltic pump is the only pump in the blood processing system.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 14, 2024
    Inventor: Lon Howard Stone
  • Publication number: 20230417640
    Abstract: The subject invention pertains to a new method for measuring the elastic properties of microfibers by rope-coiling. Rope-coiling refers to the buckling of a slender elastic fiber caused by axial compression. A continuous flow microfluidic method enables the high-throughput measurement of the elasticity of microfibers by rope-coiling, where sample loading and unloading are not needed between consecutive measurements. In certain embodiments the coiling radius can be directly proportional to the elastic modulus of the fiber, facilitating calibration to measure fiber elasticity for high-throughput applications. Throughput can be thousands of times higher than that of a tensile tester, making possible an in situ, on-line measurement in a microfluidic production line, which couples the making of microfibers and the measurement of elasticity on the same line. The new method can also measure certain fibers with local variations in elasticity.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 28, 2023
    Inventors: Yuan LIU, Anderson, Ho Cheung SHUM, Janine K. NUNES, Howard A. STONE
  • Patent number: 11710093
    Abstract: Computer program products, methods, systems, apparatus, and computing entities for enhanced cargo screening capabilities are provided.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: July 25, 2023
    Assignee: UNITED PARCEL SERVICE OF AMERICA, INC.
    Inventors: Tony Baldassari, Howard Stone
  • Publication number: 20230143042
    Abstract: Disclosed herein is a multi-purpose aerosol platform capable of producing and delivery of submicron and nano structured materials for pharmaceutical, biomedical and environmental applications. Depending on the application, active chemical and biological materials may be processed from liquid dispersions into droplets and/or particle formulations. The disclosed system uses moderate gas pressures to atomize liquids into submicron-size droplets that are 10-1000 times smaller in diameter than commercial and research systems. This allows much gentler and rapid droplet-to-particle conversion, applying much smaller physical and chemical stresses on the processed materials than conventional techniques like spray drying, spray coating, spray freeze drying and other technologies. For example, the disclosed system can be used for an ultra-fine nebulization and delivery of viscous therapeutic oils including oils of medical cannabis, for which conventional nebulization systems either fail or became ineffective.
    Type: Application
    Filed: April 6, 2021
    Publication date: May 11, 2023
    Applicant: The Trustees of Princeton University
    Inventors: Maksym MEZHERICHER, Howard A. STONE
  • Publication number: 20230028572
    Abstract: Disclosed herein is a simple method for generation of high-throughput aerosols of monodisperse micro-shell particles. To create the aerosol, small nozzles are employed blowing slightly compressed air on a thin liquid film. This allows one to generate bubble aerosols consisting of particles having a thin liquid shell surrounding a gas core, which are suspended in a carrier gas flow or environment. The diameter of the created liquid shells is uniform and scales with the inner diameter of the blowing nozzle, enabling control on the size of the produced monodispersed aerosol and formation of particles between few microns to several hundred of microns in outer diameter. The process throughput is very high, reaching several thousands of particles with liquid micro-shells per second for one blowing nozzle.
    Type: Application
    Filed: November 19, 2020
    Publication date: January 26, 2023
    Applicant: The Trustees of Princeton University
    Inventors: Maksym MEZHERICHER, Howard A. STONE
  • Publication number: 20220268731
    Abstract: Methods described herein, in some embodiments, permit extraction of particle structural and/or surface charge data from gradient induced particle motion in channels. In one aspect, a method of manipulating particle motion comprises introducing a fluid into a channel, the fluid comprising particles, and driving particle accumulation to a preselected location in the channel by setting advective velocity of the fluid to offset diffusiophoretic mobility of the particles at the preselected location.
    Type: Application
    Filed: April 14, 2022
    Publication date: August 25, 2022
    Inventors: Jesse AULT, Sangwoo SHIN, Howard A. STONE, Jie FENG, Patrick WARREN
  • Patent number: 11307170
    Abstract: Methods described herein, in some embodiments, permit extraction of particle structural and/or surface charge data from gradient induced particle motion in channels. In one aspect, a method of manipulating particle motion comprises introducing a fluid into a channel, the fluid comprising particles, and driving particle accumulation to a preselected location in the channel by setting advective velocity of the fluid to offset diffusiophoretic mobility of the particles at the preselected location.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: April 19, 2022
    Assignees: The Trustees of Princeton University, UT-BATTELLE, LLC, University of Hawaii
    Inventors: Jesse Ault, Sangwoo Shin, Howard A Stone, Jie Feng, Patrick Warren
  • Patent number: 11161124
    Abstract: Disclosed is a process for separating suspended particles based on size. When confined in a tube, a bubble moves relative to the liquid as a small fraction of the liquid leaks backwards through a very thin gap between the bubble and the internal wall of the tube. The lubricating film formed around the bubble can be fine-tuned by simply changing the average flow speed. With this thin film of liquid, the confined air bubble can be used to separate particles in, for example, poly-disperse microspheres suspensions. As the bubble passes through the suspension, only particles smaller than the liquid gap thickness can leak through the gap towards the back of the bubble, resulting a filtered particle suspension containing only small particles at the back of the bubble. Compared to the traditional methods, this particle separation process is easy to perform, and is flexible in filtering different suspensions with one set-up.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 2, 2021
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Howard A. Stone, Sepideh Khodaparast, Yingxian Yu
  • Publication number: 20210268466
    Abstract: Methods of inducing or controlling particle motion in suspensions and colloids are described. In one aspect, a method of inducing particle motion in a suspension comprises contacting the suspension with a gas phase to establish at least one interface between the gas phase and continuous phase of the suspension. One or more gases of the gas phase are transferred across the interface to provide a solute gradient in the continuous phase, the solute gradient inducing motion of the suspended particles.
    Type: Application
    Filed: May 14, 2021
    Publication date: September 2, 2021
    Inventors: Orest Shardt, Sangwoo Shin, Suin Shim, Patrick B. Warren, Howard A. Stone
  • Publication number: 20210186010
    Abstract: The invention relates to compositions comprising Quorum-Sensing (QS) modulating molecules attached to a surface via a linker. This QS modulator attached surface can then be used to modulate QS, biofilm production, biofilm streamer production and/or virulence factor production. The length of the linker that attaches the QS modulating molecule to the surface as well as the surface coverage density impact QS modulation on surfaces. These QS modulator attached surfaces can be used to treat areas known to contain human pathogens notorious for causing hospital-acquired infections as well as fatal infections that occur outside of health care settings. Other surfaces that can be coated according to embodiments of the invention include abiotic materials, such as intravenous catheters, implants, medical devices, and cooling towers. Preferred microorganisms that can be treated with the compositions of the invention include, but are not limited to S. aureus and/or P. aeruginosa.
    Type: Application
    Filed: October 17, 2020
    Publication date: June 24, 2021
    Applicant: The Trustees of Princeton University
    Inventors: Bonnie L. Bassler, Howard A. Stone, Min Young Kim, Thomas William Muir, Aishan Zhao
  • Patent number: 11007500
    Abstract: Methods of inducing or controlling particle motion in suspensions and colloids are described. In one aspect, a method of inducing particle motion in a suspension comprises contacting the suspension with a gas phase to establish at least one interface between the gas phase and continuous phase of the suspension. One or more gases of the gas phase are transferred across the interface to provide a solute gradient in the continuous phase, the solute gradient inducing motion of the suspended particles.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: May 18, 2021
    Assignee: The Trustees of Princeton University
    Inventors: Orest Shardt, Sangwoo Shin, Suin Shim, Patrick B. Warren, Howard A. Stone
  • Publication number: 20200326301
    Abstract: Methods described herein, in some embodiments, permit extraction of particle structural and/or surface charge data from gradient induced particle motion in channels. In one aspect, a method of manipulating particle motion comprises introducing a fluid into a channel, the fluid comprising particles, and driving particle accumulation to a preselected location in the channel by setting advective velocity of the fluid to offset diffusiophoretic mobility of the particles at the preselected location.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Inventors: Jesse AULT, Sangwoo SHIN, Howard A. STONE, Jie FENG, Patrick WARREN
  • Patent number: 10780371
    Abstract: Emulsion breaking and phase separation is achieved by droplet adhesion. An emulsion breaking device includes a channel having distinct adjacent zones with distinctly different surface wettability characteristics, namely, solvophilic and solvophobic surfaces. The device is positioned such that the upstream portion of the device is configured to be wetted by the continuous phase of the emulsion, and the downstream portion of the device is configured to be wetted by the dispersed phase of the emulsion. As the emulsion flows from the upstream zone to the downstream zone, the change in surface wettability characteristics promotes adhesion of the dispersed phase as the dispersed phase wets the surface of the downstream portion of the channel, which results in breaking of the emulsion. Subsequent collection of the broken emulsion in a collection vessel results in separation of the disparate phases to facilitate their recapture and recycling.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 22, 2020
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Howard A. Stone, Jiang Li, Haosheng Chen
  • Publication number: 20200255299
    Abstract: Disclosed is a separation device and a method for separating charged particles from a liquid stream. The separation is effected by establishing an ion concentration gradient across the direction of the liquid stream by the introduction of a gas which when contacted with the liquid, in a reversible reaction, forms a soluble ionic species. A concentration gradient is maintained across the direction of the liquid stream which in turn induces separation of charged particles within the liquid stream due to the effect of diffusiophoresis. The device operates using little or no power, and dispenses with the need for filtration media or separation membranes. The device and method is adaptable to any of a number of separation processes, including biological separation processes, water purification and industrial processes.
    Type: Application
    Filed: September 1, 2017
    Publication date: August 13, 2020
    Inventors: Howard A. STONE, Orest Shardt, Sangwoo Shin, Patrick B. Warren
  • Patent number: 10697931
    Abstract: Methods described herein, in some embodiments, permit extraction of particle structural and/or surface charge data from gradient induced particle motion in channels. In one aspect, a method of manipulating particle motion comprises introducing a fluid into a channel, the fluid comprising particles, and driving particle accumulation to a preselected location in the channel by setting advective velocity of the fluid to offset diffusiophoretic mobility of the particles at the preselected location.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 30, 2020
    Assignee: The Trustees of Princeton University
    Inventors: Jesse Ault, Sangwoo Shin, Howard A. Stone, Jie Feng, Patrick Warren
  • Patent number: 10680193
    Abstract: A photovoltaic cell and method of making are disclosed. The photovoltaic cell includes a substrate having a surface at least partially covered in wrinkles and folds, the folds dividing the surface into a plurality of domains. A photoactive layer is formed on the substrate. At least one transparent electrode is coupled to the photoactive layer and configured to allow transmission of light into the photoactive layer. The domains may have a wrinkle periodicity of less than 2 ?m. The folds may have a fold density of less than 0.25. The transport layer may comprise PEDOT:PSS. The photoactive layer may comprise P3HT:PCBM. The photoactive layer may comprise a bulk heterojunction.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 9, 2020
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Yueh-Lin Loo, Jongbok Kim, Pilnam Kim, Howard Stone, Nicolas Pegard, Jason Fleischer
  • Patent number: 10617791
    Abstract: Provided is a hydrogel. The hydrogel includes a liquid and a plurality of microfibers suspended in the liquid as an entangled network. The entangled network includes physically entangled microfibers that are mechanically interlocked.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: April 14, 2020
    Assignees: THE TRUSTEES OF PRINCETON UNIVERSITY, UNIVERSITÀ DI NAPOLI “FEDERICO II” DIPARTIMENTO DI INGEGNERIA CHIMICA, DEI MATERIALI E DELLA PRODUZIONE INDUSTRIALE
    Inventors: Janine K. Nunes, Antonio Perazzo, Stefano Guido, Howard A. Stone
  • Patent number: 10564084
    Abstract: Disclosed is a process and device allowing for fast measurements of the physicochemical properties of amphiphiles (lipids, surfactants, soaps, . . . ). A Marangoni flow is created and characterized using amphiphiles to be characterized. The observed flow is characterized, and using the disclosed process, one can deduce from this measurement many important physicochemical parameters of the amphiphiles such as their critical micellar concentration. Compared to existing techniques, the disclosed process offers the advantage that it requires a single experiment to deduce the parameters, when other techniques (pendant drop method, conductometry, etc . . . ) require the measurement of a quantity (interfacial tension, conductometry) against a systematically varied parameter (amphiphile concentration, . . . ). The disclosed process and devices are ideal to characterize and/or screen rapidly amphiphiles molecules based on their interaction with a solvent.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: February 18, 2020
    Assignees: THE TRUSTEES OF PRINCETON UNIVERSITY, CNRS-CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES I, CHANCELLOR, MASTERS & SCHOLARS OF UNIV. OF OXFORD
    Inventors: Matthieu Roche, Howard A. Stone, Isabelle Cantat, Arnaud Saint-Jalmes, Ian Griffiths, Sebastien Le Roux, Zhen Zhen Li
  • Patent number: 10500167
    Abstract: The invention includes microfluidic methods and devices that allow for the continuous production of microfibers with embedded droplets aligned along the length of the fiber at specific positions. The invention allows for formation of single or multiple emulsions within a fiber. The various phases comprised within the fiber can vary in terms of in terms of hydrophobic/hydrophilic character, solid/fluid, or gel crosslink density, which allows for the introduction of heterogeneous microenvironments within the fiber, each of which with distinct solubility characteristics, permeability, and mechanical properties. Various compounds and materials can be encapsulated in the different microcompartments of the fiber for storage and delivery applications, as well as to provide multifunctionality to the fiber structure.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 10, 2019
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Howard A. Stone, Janine K. Nunes, Eujin Um, Tamara Pico
  • Publication number: 20190354929
    Abstract: Computer program products, methods, systems, apparatus, and computing entities for enhanced cargo screening capabilities are provided.
    Type: Application
    Filed: July 12, 2019
    Publication date: November 21, 2019
    Inventors: Tony Baldassari, Howard Stone