Patents by Inventor Tan Tran
Tan Tran 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).
-
Patent number: 11686173Abstract: An improved rotating control device, having a spool and removable bearing assembly, provides a self-contained hydraulic reservoir that can be operated with standard air pressures from an air hose or other readily available source, eliminating traditional surface hydraulic power units (HPUs). Hydraulically operated pistons can be spring biased to close latching elements around the bearing assembly. Hydraulic fluid can be forced from the self-contained hydraulic reservoir through flow paths to hydraulic cylinders to force the pistons to retract radially outward to release the bearing assembly for removal. The bearing assembly can include a lubricant reservoir to supply gravity-fed or pressurized lubrication for internal roller bearings. The bearing assembly can further include a rotary seal in several embodiments that efficiently reduces risks of dropping bolts on personnel and in the wellbore.Type: GrantFiled: April 30, 2021Date of Patent: June 27, 2023Assignee: PREMIUM OILFIELD TECHNOLOGIES, LLCInventors: Lap Tan Tran, Douglas Jahnke
-
Publication number: 20230023693Abstract: Embodiments of the present invention include a test-boost electric power recloser that limits the duration of the test current imposed on the power line to less than two electric power cycles, and preferably less than one electric power cycle, when attempting to reclose into a fault. The test-boost recloser sends a test pulse causing a non-latching close followed by a boost pulse causing a latching close if waveform analysis based on the test close indicates that the fault has likely cleared. The test-boost approach can typically be implemented through a software and calibration upgrade to a conventional single-coil recloser, accomplishing results comparable to a dual-actuator recloser at a much lower cost. The recloser may perform iterative and feedback learning feedback processes to automatically improve its operation over time in response to measured fault and non-fault conditions and its success in predicting whether faults have cleared.Type: ApplicationFiled: May 17, 2022Publication date: January 26, 2023Inventors: Jiyuan Fan, Steve Hua Fan, Tan Tran, Joseph R. Rostron, Buddy Reneau
-
Publication number: 20230004836Abstract: Some embodiments include systems and methods for recall estimation. An exemplary method comprises determining reservoir sampling and size of labeling from each strata; determining recall and variance for each strata; determining sum of sample size for a time period; and determining reservoir sampling for each strata and label the sample items. Other embodiments are described.Type: ApplicationFiled: November 16, 2021Publication date: January 5, 2023Applicant: Walmart Apollo, LLCInventors: Eren Atmaca, Samrat Kokkula, Theban Solomon Stanley, Quoc Tan Tran, Alessandro Magnani, Chhavi Yadav, Abon Chaudhuri
-
Patent number: 11532000Abstract: Systems and methods including one or more processing modules and one or more non-transitory storage modules storing computing instructions configured to run on the one or more processing modules and perform acts of calculating a halo weight for at least one item of a set of items, where the halo weight can comprise an effect sales of the at least one item has on sales of the set of items; calculating an item-wise elasticity for the at least one item; calculating a line-wise elasticity for the at least one item of the set of items; calculating an aggregate elasticity for the at least one item using the item-wise elasticity and the line-wise elasticity; calculating a demand forecast for the at least one item of the set of items; optimizing an objective function comprising the halo weight, the aggregate elasticity, the demand forecast, and at least one external constraint; adjusting at least one price of the at least one item based on the objective function, as optimized; and displaying the at least one price, aType: GrantFiled: October 12, 2018Date of Patent: December 20, 2022Assignee: WALMART APOLLO, LLCInventors: Sai Zhang, Peibei Shi, Quoc Tan Tran
-
Patent number: 11429992Abstract: Systems and methods can include one or more processing modules and one or more non-transitory storage modules storing computing instructions configured to run on the one or more processing modules and perform acts of: estimating demand for one or more items in an electronic basket of items using one or more different demand models; estimating elasticity for the one or more items in the electronic basket of items using a multi-armed bandit model; determining a price using the demand and the elasticity; and facilitating display of the price on a video screen of a device. Other embodiments are disclosed herein.Type: GrantFiled: November 27, 2018Date of Patent: August 30, 2022Assignee: WALMART APOLLO, LLCInventors: Ravi Sastry Ganti Mahapatruni, Matyas Attila Sustik, Quoc Tan Tran, Brian Thomas Seaman
-
Publication number: 20210340834Abstract: An improved rotating control device, having a spool and removable bearing assembly, provides a self-contained hydraulic reservoir that can be operated with standard air pressures from an air hose or other readily available source, eliminating traditional surface hydraulic power units (HPUs). Hydraulically operated pistons can be spring biased to close latching elements around the bearing assembly. Hydraulic fluid can be forced from the self-contained hydraulic reservoir through flow paths to hydraulic cylinders to force the pistons to retract radially outward to release the bearing assembly for removal. The bearing assembly can include a lubricant reservoir to supply gravity-fed or pressurized lubrication for internal roller bearings. The bearing assembly can further include a rotary seal in several embodiments that efficiently reduces risks of dropping bolts on personnel and in the wellbore.Type: ApplicationFiled: April 30, 2021Publication date: November 4, 2021Applicant: Premium Oilfield Technologies, LLCInventors: Lap Tan TRAN, Douglas JAHNKE
-
Patent number: 11087908Abstract: The present invention relates to a method of manufacturing a superparamagnetic nanocomposite and a superparamagnetic nanocomposite manufactured using the same, and more particularly to a method of manufacturing a superparamagnetic nanocomposite suitable for use in magnetic separation for the detection of a target biomaterial and a superparamagnetic nanocomposite manufactured using the same. The method of manufacturing the superparamagnetic nanocomposite according to the present invention has a higher yield and a high rate without complicated processing than a conventional method of manufacturing a magnetic nanoparticle for magnetic separation and is capable of mass production of the superparamagnetic nanocomposite having excellent properties with uniform size and particle size distribution, high aqueous solution dispersibility and high magnetization and being capable of maintaining superparamagnetism.Type: GrantFiled: April 17, 2020Date of Patent: August 10, 2021Assignees: AMOLIFESCIENCE CO., LTD., PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Sung-Il Kim, Min-Young Choi, Myoung-Yeol Lee, Jae-Beom Lee, Van Tan Tran, Jeong-Hyo Kim, Sang-Jin Oh
-
Publication number: 20200265978Abstract: The present invention relates to a method of manufacturing a superparamagnetic nanocomposite and a superparamagnetic nanocomposite manufactured using the same, and more particularly to a method of manufacturing a superparamagnetic nanocomposite suitable for use in magnetic separation for the detection of a target biomaterial and a superparamagnetic nanocomposite manufactured using the same. The method of manufacturing the superparamagnetic nanocomposite according to the present invention has a higher yield and a high rate without complicated processing than a conventional method of manufacturing a magnetic nanoparticle for magnetic separation and is capable of mass production of the superparamagnetic nanocomposite having excellent properties with uniform size and particle size distribution, high aqueous solution dispersibility and high magnetization and being capable of maintaining superparamagnetism.Type: ApplicationFiled: April 17, 2020Publication date: August 20, 2020Inventors: Sung-Il Kim, Min-Young Choi, Myoung-Yeol Lee, Jae-Beom Lee, Van Tan Tran, Jeong-Hyo Kim, Sang-Jin Oh
-
Patent number: 10698010Abstract: A high voltage electric power line monitor includes a current sensor, a voltage sensor, an energy harvesting power supply, and a communication device. The monitor is supported by an overhead power line support structure, such an insulator housing a sectionalizing switch. The current sensor coil and the energy harvesting coils are positioned transverse to the power line with the power lane passing through the coils. A foil patch voltage sensor and a communications antenna are carried on an electronics board positioned parallel to the monitored power line, typically below the current sensor. Both the current sensor and the voltage sensor are positioned adjacent to, but spaced apart from, the monitored power line creating an air gap between the monitor and the power line. The sensors are housed within a Faraday cage to shield the current sensor from electromagnetic contamination.Type: GrantFiled: May 4, 2018Date of Patent: June 30, 2020Assignee: Southern StatesInventors: Josh Keister, Joseph R Rostron, Jiyuan Fan, Tan Tran
-
Patent number: 10658097Abstract: The present invention relates to a method of manufacturing a superparamagnetic nanocomposite and a superparamagnetic nanocomposite manufactured using the same, and more particularly to a method of manufacturing a superparamagnetic nanocomposite suitable for use in magnetic separation for the detection of a target biomaterial and a superparamagnetic nanocomposite manufactured using the same. The method of manufacturing the superparamagnetic nanocomposite according to the present invention has a higher yield and a high rate without complicated processing than a conventional method of manufacturing a magnetic nanoparticle for magnetic separation and is capable of mass production of the superparamagnetic nanocomposite having excellent properties with uniform size and particle size distribution, high aqueous solution dispersibility and high magnetization and being capable of maintaining superparamagnetism.Type: GrantFiled: August 11, 2017Date of Patent: May 19, 2020Assignees: AMOLIFESCIENCE CO., LTD., PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Sung-Il Kim, Min-Young Choi, Myoung-Yeol Lee, Jae-Beom Lee, Van Tan Tran, Jeong-Hyo Kim, Sang-Jin Oh
-
Patent number: 10627431Abstract: The present invention may be embodied in an in-line high voltage electric power line monitor including a DC current sensor, an AC current sensor, an energy harvesting power supply, and a communication device. The in-line power line monitor includes a bus bar that connects in series with the monitored power line. For example, the in-line power line monitor may be connected at the junction point between the monitored power line and a support structure, such a sectionalizing switch that supports the monitor positioned between the switch and the power line. A pair of DC current measurement pickups are spaced apart on the bus bar and operatively connected to the microprocessor. The in-line power line monitor also includes an AC current sensor coil and an energy harvesting device (e.g., inductive coil) that surround the bus bar. The AC current sensor coil and the power supply coil are positioned adjacent to, but spaced apart from, the bus bar.Type: GrantFiled: October 22, 2019Date of Patent: April 21, 2020Assignee: Southern States, LLCInventors: Josh Keister, Joseph R Rostron, Jiyuan Fan, Tan Tran
-
Publication number: 20200049743Abstract: The present invention may be embodied in an in-line high voltage electric power line monitor including a DC current sensor, an AC current sensor, an energy harvesting power supply, and a communication device. The in-line power line monitor includes a bus bar that connects in series with the monitored power line. For example, the in-line power line monitor may be connected at the junction point between the monitored power line and a support structure, such a sectionalizing switch that supports the monitor positioned between the switch and the power line. A pair of DC current measurement pickups are spaced apart on the bus bar and operatively connected to the microprocessor. The in-line power line monitor also includes an AC current sensor coil and an energy harvesting device (e.g., inductive coil) that surround the bus bar. The AC current sensor coil and the power supply coil are positioned adjacent to, but spaced apart from, the bus bar.Type: ApplicationFiled: October 22, 2019Publication date: February 13, 2020Inventors: Josh Keister, Joseph R Rostron, Jiyuan Fan, Tan Tran
-
Patent number: 10481186Abstract: The present invention may be embodied in an in-line high voltage electric power line monitor including a DC current sensor, an AC current sensor, a voltage sensor, an energy harvesting power supply, and a communication device configured. The in-line power line monitor includes a bus bar that connects in series with the monitored power line. For example, the in-line power line monitor may be connected at the junction point between the monitored power line and a support structure, such a sectionalizing switch that supports the monitor positioned between the switch and the power line. A pair of DC current measurement pickups are spaced apart on the bus bar and operatively connected to the microprocessor. The in-line power line monitor also includes an AC current sensor coil and an energy harvesting device (e.g., inductive coil) that surround the bus bar. The AC current sensor coil, the power supply coil and the voltage sensor positioned adjacent to, but spaced apart from, the bus bar.Type: GrantFiled: May 4, 2018Date of Patent: November 19, 2019Assignee: Southern States, LLCInventors: Josh Keister, Joseph R Rostron, Jiyuan Fan, Tan Tran
-
Publication number: 20190172082Abstract: Systems and methods can include one or more processing modules and one or more non-transitory storage modules storing computing instructions configured to run on the one or more processing modules and perform acts of: estimating demand for one or more items in an electronic basket of items using one or more different demand models; estimating elasticity for the one or more items in the electronic basket of items using a multi-armed bandit model; determining a price using the demand and the elasticity; and facilitating display of the price on a video screen of a device. Other embodiments are disclosed herein.Type: ApplicationFiled: November 27, 2018Publication date: June 6, 2019Applicant: Walmart Apollo, LLCInventors: Ravi Sastry Ganti Mahapatruni, Matyas Attila Sustik, Quoc Tan Tran, Brian Thomas Seaman
-
Publication number: 20190114656Abstract: Systems and methods including one or more processing modules and one or more non-transitory storage modules storing computing instructions configured to run on the one or more processing modules and perform acts of calculating a halo weight for at least one item of a set of items, where the halo weight can comprise an effect sales of the at least one item has on sales of the set of items; calculating an item-wise elasticity for the at least one item; calculating a line-wise elasticity for the at least one item of the set of items; calculating an aggregate elasticity for the at least one item using the item-wise elasticity and the line-wise elasticity; calculating a demand forecast for the at least one item of the set of items; optimizing an objective function comprising the halo weight, the aggregate elasticity, the demand forecast, and at least one external constraint; adjusting at least one price of the at least one item based on the objective function, as optimized; and displaying the at least one price, aType: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Applicant: WALMART APOLLO, LLCInventors: Sai Zhang, Peibei Shi, Quoc Tan Tran
-
Patent number: 10241136Abstract: A high voltage capacitor current monitor that attaches to a bushing on the exterior of a capacitor container (commonly referred to as a “can”). The capacitor current monitor, which draws operating power from the power line, detects the current flowing through the high voltage capacitor and can be used as part of a capacitor status monitor to detect internal failures down to the level of a single capacitor pack. The monitor may include a radio transmitter and/or a visual status indicator, such as an electronic flag, indicating the detection of a fault or capacitor failure. The current monitor may also include a power supply current transformer providing power to the monitor from the power line. Capacitor current measurements may be communicated with a remote transmission unit (RTU), which communicates with a central control station that schedules capacitor maintenance based on the data received from the status monitors.Type: GrantFiled: September 6, 2017Date of Patent: March 26, 2019Assignee: Southern States, LLCInventors: Joseph R Rostron, Josh Keister, Tan Tran, Karl Fender
-
Patent number: D840960Type: GrantFiled: December 7, 2017Date of Patent: February 19, 2019Assignee: GIPHY, INC.Inventors: Ralph Bishop, Nick Dangerfield, Joseph Saavedra, Pepin S. Gelardi, Joseph Gonzalez, Tan Tran, Theodore Ullrich, Alex Chung, Riyadh Rateme
-
Patent number: D845304Type: GrantFiled: December 7, 2017Date of Patent: April 9, 2019Assignee: GIPHY, INC.Inventors: Ralph Bishop, Nick Dangerfield, Joseph Saavedra, Pepin S. Gelardi, Joseph Gonzalez, Tan Tran, Theodore Ullrich, Alex Chung, Riyadh Rateme
-
Patent number: D904489Type: GrantFiled: December 11, 2017Date of Patent: December 8, 2020Assignee: GIPHY, INC.Inventors: Ralph Bishop, Nick Dangerfield, Joseph Saavedra, Pepin S. Gelardi, Joseph Gonzalez, Tan Tran, Theodore Ullrich, Alex Chung, Riyadh Rateme
-
Patent number: D939495Type: GrantFiled: May 2, 2019Date of Patent: December 28, 2021Assignee: Hivecell, Inc.Inventors: Jeffrey Ricker, Paul Lyman, Jingwen Zhu, Theodore Ullrich, Pepin Gelardi, Josephine Latreille, Joseph Antonio Gonzalez, Tan Tran