Patents by Inventor Richard Hwang

Richard Hwang 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: 20240115144
    Abstract: A system for measuring at least one physiological parameter includes a wearable device configured to be secured to a subject's foot and a camera configured to captures images of the subject. An electronic device may be in communication with the system and can display information relating to physiological data and/or images collected by the system.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 11, 2024
    Inventors: Stephen Scruggs, James Ford Schramm, Mitchell Lloyd Ambrosini, Chad A. DeJong, Ammar Al-Ali, Richard Priddell, Sujin Hwang, Prianjali Kapur, Manuela Bertagia, Lara Garreffa, Emma Constant, Fabiola D’Ettorre, Xavier Blanc Baudriller
  • Patent number: 11922366
    Abstract: Provided are systems and processes for optimizing assignments of deliveries for perishable goods. In one aspect, a method is provided for pairing a set of created orders with a set of available couriers. The set of created orders may include orders confirmed by the merchant and the set of available couriers include couriers that are online with an active status. Feasible pairings are generated between each courier and each created order. Infeasible pairings are eliminated based on factors such as transportation mode. Possible routes for each pairing are generated and scored based on weighted factors. The scores are optimized to achieve a set of routes with a maximum score. The routes are then offered to the corresponding courier if the courier will arrive at or after the created order is completed by the merchant. A neural network may be implemented to recognize the optimal score for a given duration.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: March 5, 2024
    Assignee: DoorDash, Inc.
    Inventors: Rohan Balraj Chopra, Richard Hwang, Jeff Ning Han
  • Publication number: 20220156696
    Abstract: Provided are systems and processes for optimizing assignments of deliveries for perishable goods. In one aspect, a method is provided for pairing a set of created orders with a set of available couriers. The set of created orders may include orders confirmed by the merchant and the set of available couriers include couriers that are online with an active status. Feasible pairings are generated between each courier and each created order. Infeasible pairings are eliminated based on factors such as transportation mode. Possible routes for each pairing are generated and scored based on weighted factors. The scores are optimized to achieve a set of routes with a maximum score. The routes are then offered to the corresponding courier if the courier will arrive at or after the created order is completed by the merchant. A neural network may be implemented to recognize the optimal score for a given duration.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Applicant: DoorDash, Inc.
    Inventors: Rohan Balraj Chopra, Richard Hwang, Jeff Ning Han
  • Patent number: 11276028
    Abstract: Provided are systems and processes for optimizing assignments of deliveries for perishable goods. In one aspect, a method is provided for pairing a set of created orders with a set of available couriers. The set of created orders may include orders confirmed by the merchant and the set of available couriers include couriers that are online with an active status. Feasible pairings are generated between each courier and each created order. Infeasible pairings are eliminated based on factors such as transportation mode. Possible routes for each pairing are generated and scored based on weighted factors. The scores are optimized to achieve a set of routes with a maximum score. The routes are then offered to the corresponding courier if the courier will arrive at or after the created order is completed by the merchant. A neural network may be implemented to recognize the optimal score for a given duration.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 15, 2022
    Assignee: DoorDash, Inc.
    Inventors: Rohan Balraj Chopra, Richard Hwang, Jeff Ning Han
  • Publication number: 20210166318
    Abstract: The invention relates to an engine that generates client profile-based sales decisions. An embodiment of the present invention is directed to providing new insights to strengthen opportunities to provide additional services to clients. The system is directed to developing client profile-based recommendations for trade ideas. For example, the innovative engine may recommend opportunities, such as new trade ideas, to a particular client based upon the client's transaction history, as well as other data and factors. The system may generate an account profile based upon client data and use this profile to score a potential new trade idea.
    Type: Application
    Filed: June 3, 2016
    Publication date: June 3, 2021
    Inventors: John TANG, Ashleigh Ann THOMPSON, Benjamin F. SYLVESTER, III, Weimin SUN, Liqiang SU, Gautam MANVAR, Charlotte KEH, Robert J. RAPPA, Richard HWANG, Mark T. DIBATTISTA, Alfredo TENAGLIA, Niall MCINTYRE, David H. ROY, Stephanie Falbo KENNEDY, Amir TAL
  • Publication number: 20200394610
    Abstract: Provided are systems and processes for optimizing assignments of deliveries for perishable goods. In one aspect, a method is provided for pairing a set of created orders with a set of available couriers. The set of created orders may include orders confirmed by the merchant and the set of available couriers include couriers that are online with an active status. Feasible pairings are generated between each courier and each created order. Infeasible pairings are eliminated based on factors such as transportation mode. Possible routes for each pairing are generated and scored based on weighted factors. The scores are optimized to achieve a set of routes with a maximum score. The routes are then offered to the corresponding courier if the courier will arrive at or after the created order is completed by the merchant. A neural network may be implemented to recognize the optimal score for a given duration.
    Type: Application
    Filed: August 31, 2020
    Publication date: December 17, 2020
    Applicant: DoorDash, Inc.
    Inventors: Rohan Balraj Chopra, Richard Hwang, Jeff Ning Han
  • Patent number: 10810536
    Abstract: Provided are systems and processes for optimizing assignments of deliveries for perishable goods. In one aspect, a method is provided for pairing a set of created orders with a set of available couriers. The set of created orders may include orders confirmed by the merchant and the set of available couriers include couriers that are online with an active status. Feasible pairings are generated between each courier and each created order. Infeasible pairings are eliminated based on factors such as transportation mode. Possible routes for each pairing are generated and scored based on weighted factors. The scores are optimized to achieve a set of routes with a maximum score. The routes are then offered to the corresponding courier if the courier will arrive at or after the created order is completed by the merchant. A neural network may be implemented to recognize the optimal score for a given duration.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 20, 2020
    Assignee: DOORDASH, INC.
    Inventors: Rohan Balraj Chopra, Richard Hwang, Jeff Ning Han
  • Publication number: 20190164126
    Abstract: Provided are systems and processes for optimizing assignments of deliveries for perishable goods. In one aspect, a method is provided for pairing a set of created orders with a set of available couriers. The set of created orders may include orders confirmed by the merchant and the set of available couriers include couriers that are online with an active status. Feasible pairings are generated between each courier and each created order. Infeasible pairings are eliminated based on factors such as transportation mode. Possible routes for each pairing are generated and scored based on weighted factors. The scores are optimized to achieve a set of routes with a maximum score. The routes are then offered to the corresponding courier if the courier will arrive at or after the created order is completed by the merchant. A neural network may be implemented to recognize the optimal score for a given duration.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Applicant: DoorDash, Inc.
    Inventors: Rohan Balraj Chopra, Richard Hwang, Jeff Ning Han
  • Patent number: 9690323
    Abstract: A portable electronic device includes a main body, a protective foldable cover, a membrane keyboard and a folding means. The protective foldable cover is attached structurally in a foldable manner to the main body and further has a foldable leaf to cover the main body. The membrane keyboard is mounted to the foldable leaf by facing the main body and is connected signally with the main body. The folding means is to provide at least one stand state for the main body to stand on the foldable leaf of the protective foldable cover and thus to present the membrane keyboard completely to a position in front of the main body.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: June 27, 2017
    Inventor: Richard Hwang
  • Patent number: 9662443
    Abstract: An alert device for use with an intravenous drip, comprises two induction ends and a control unit. The control unit comprises a circuit module, an alarm module and a power module. The two induction ends are located on a pipe of the intravenous drip and are contacting with an injection solution inside the pipe. The two induction ends are electrically connected to the control unit by wires. The circuit module detects the induction ends to determine whether the induction ends are in an open-loop status or not. The circuit module connects to the alarm module. The power module supplies power for the control unit. The induction ends uses the injection solution as a conducting means to form an electrically closed loop; when the induction ends do not contact with the injection solution, the induction ends become an open-loop, and thus the alarm module generates alarm signals.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 30, 2017
    Inventor: Richard Hwang
  • Publication number: 20170103296
    Abstract: A wireless input device comprises a plurality of RFID tag units and keys. Each RFID tag unit is coupled with two conductive wires. Only when the two conductive wires are in a closed-loop status, the RFID tag unit can generate a responsive RF signal corresponding to a scanning signal generated by a host device. Each key is formed with a switching mechanism connectable to the conductive wires of at least one of the RFID tag units. When any one of the keys is pressed, the conductive wires connectable to the pressed key will be switched to the closed-loop status from an open-loop status, and when that pressed key is released, the conductive wires connectable to the released key will be switched back to said open-loop status. Therefore, the wireless input device can be operated without the need of internal electric power.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 13, 2017
    Inventors: Richard Hwang, Memiee L. Hwang
  • Patent number: 9600756
    Abstract: A wireless input device comprises a plurality of RFID tag units and keys. Each RFID tag unit is coupled with two conductive wires. Only when the two conductive wires are in a closed-loop status, the RFID tag unit can generate a responsive RF signal corresponding to a scanning signal generated by a host device. Each key is formed with a switching mechanism connectable to the conductive wires of at least one of the RFID tag units. When any one of the keys is pressed, the conductive wires connectable to the pressed key will be switched to the closed-loop status from an open-loop status, and when that pressed key is released, the conductive wires connectable to the released key will be switched back to said open-loop status. Therefore, the wireless input device can be operated without the need of internal electric power.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: March 21, 2017
    Inventors: Richard Hwang, Memiee L. Hwang
  • Publication number: 20170020493
    Abstract: An organism paracentesis device comprises a first tube member and a second tube member. The first tube member comprises an injection tube filled with a medicament, a piston and a first syringe needle. The second tube member comprises a sampling tube and a second syringe needle. Both ends of the second syringe needle are in the form of syringe needle. Using one end of the second syringe needle to penetrate a cover of the sampling tube which is vacuumed, such that the second syringe needle's the other end which is penetrating into an organism will extract a sample from the organism because of the vacuumed sampling tube. The medicament filled in the injection tube is ejected both when the first and second syringe needles are penetrating into and pulled out of the organism, so as to avoid the cells of sampled organism being spread to other places.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 26, 2017
    Inventor: Richard Hwang
  • Patent number: 9480465
    Abstract: An organism paracentesis device comprises a first tube member and a second tube member. The first tube member comprises an injection tube filled with a medicament, a piston and a first syringe needle. The second tube member comprises a sampling tube and a second syringe needle. Both ends of the second syringe needle are in the form of syringe needle. Using one end of the second syringe needle to penetrate a cover of the sampling tube which is vacuumed, such that the second syringe needle's the other end which is penetrating into an organism will extract a sample from the organism because of the vacuumed sampling tube. The medicament filled in the injection tube is ejected both when the first and second syringe needles are penetrating into and pulled out of the organism, so as to avoid the cells of sampled organism being spread to other places.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: November 1, 2016
    Inventor: Richard Hwang
  • Publication number: 20160252931
    Abstract: A portable electronic device includes a main body, a protective foldable cover, a membrane keyboard and a folding means. The protective foldable cover is attached structurally in a foldable manner to the main body and further has a foldable leaf to cover the main body. The membrane keyboard is mounted to the foldable leaf by facing the main body and is connected signally with the main body. The folding means is to provide at least one stand state for the main body to stand on the foldable leaf of the protective foldable cover and thus to present the membrane keyboard completely to a position in front of the main body.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Inventor: Richard Hwang
  • Publication number: 20160101140
    Abstract: A method for processing rosaceous kernels includes the steps of preparing a predetermined amount of rosaceous kernels, heating the rosaceous kernels to a predetermined temperature range for a predetermined time, lowering a temperature of the rosaceous kernels to a normal temperature, and making the rosaceous kernels edible for users to intake Vit B17 contained in the rosaceous kernels. Through the heating process, the beta-glucosidase contained in the rosaceous kernels can be destroyed completely, but the Vit B17 still stays in the rosaceous kernels.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 14, 2016
    Inventor: Richard Hwang
  • Patent number: 9258396
    Abstract: A hand-held electronic device having a rolled-up screen comprises a flexible screen which can be partially received within a casing by a reeling mechanism in such a manner that the displaying function can still be performed by the flexible screen partially exposed outside the casing. When the flexible screen is pulled out and entirely exposed outside of the casing, the entire flexible screen can be used for image-displaying. Thus, advantages in both the high displaying quality of a large screen and excellent portability of a small-sized hand-held electronic device can be attained.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 9, 2016
    Inventor: Richard Hwang
  • Publication number: 20150190571
    Abstract: An alert device for use with an intravenous drip, comprises two induction ends and a control unit. The control unit comprises a circuit module, an alarm module and a power module. The two induction ends are located on a pipe of the intravenous drip and are contacting with an injection solution inside the pipe. The two induction ends are electrically connected to the control unit by wires. The circuit module detects the induction ends to determine whether the induction ends are in an open-loop status or not. The circuit module connects to the alarm module. The power module supplies power for the control unit. The induction ends uses the injection solution as a conducting means to form an electrically closed loop; when the induction ends do not contact with the injection solution, the induction ends become an open-loop, and thus the alarm module generates alarm signals.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 9, 2015
    Inventor: Richard Hwang
  • Publication number: 20150190125
    Abstract: An organism paracentesis device comprises a first tube member and a second tube member. The first tube member comprises an injection tube filled with a medicament, a piston and a first syringe needle. The second tube member comprises a sampling tube and a second syringe needle. Both ends of the second syringe needle are in the form of syringe needle. Using one end of the second syringe needle to penetrate a cover of the sampling tube which is vacuumed, such that the second syringe needle's the other end which is penetrating into an organism will extract a sample from the organism because of the vacuumed sampling tube. The medicament filled in the injection tube is ejected both when the first and second syringe needles are penetrating into and pulled out of the organism, so as to avoid the cells of sampled organism being spread to other places.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 9, 2015
    Inventor: Richard Hwang
  • Publication number: 20140194165
    Abstract: A hand-held electronic device having a rolled-up screen comprises a flexible screen which can be partially received within a casing by a reeling mechanism in such a manner that the displaying function can still be performed by the flexible screen partially exposed outside the casing. When the flexible screen is pulled out and entirely exposed outside of the casing, the entire flexible screen can be used for image-displaying. Thus, advantages in both the high displaying quality of a large screen and excellent portability of a small-sized hand-held electronic device can be attained.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Inventor: Richard Hwang