Patents by Inventor Sang Kil JUNG

Sang Kil JUNG 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: 20240158705
    Abstract: The present disclosure provides a method and device for refining waste plastic pyrolysis oil, the method including (S1) subjecting a waste plastic pyrolysis oil feedstock to a heat treatment by charging the waste plastic pyrolysis oil feedstock into a rotary kiln reactor and increasing a temperature of the rotary kiln reactor to form a product; (S2) recovering a gas component from the product of step (S1); (S3) separating a high boiling point wax component from the recovered gas component and re-supplying the separated high boiling point wax component to the rotary kiln reactor in step (S1); and (S4) recovering refined oil from the gas component from which the high boiling point wax component is removed.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 16, 2024
    Inventors: Sang Hwan Jo, Soo Kil Kang, Ik Hwan Na, Ho Won Lee, Jae Heum Jung, Se Rah Moon, Hee Young Jeon
  • Patent number: 11936194
    Abstract: An apparatus and a method for controlling the power transfer coverage of a wireless power transmission network are disclosed. The method for controlling the power transfer coverage of a wireless power transmission network, which includes a plurality of peripheral devices for receiving power from a main device through a resonant channel within the power transfer coverage of the main device, comprises the steps of: checking a wireless power transmission network disconnection state of any one of the plurality of peripheral devices by a procedure gradually decreasing the amount of transmission power of the main device; and forming the power transfer coverage on the basis of the amount of transmission power at the moment of the wireless power transmission network disconnection.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 19, 2024
    Assignee: GE Hybrid Technologies, LLC
    Inventors: Chun Kil Jung, Sang Youn Noh
  • Publication number: 20240041168
    Abstract: A zipper strap structure according to an embodiment includes a first strap, a second strap disposed side by side with the first strap, an internal coupling unit, and an external coupling unit. According to the invention, the internal and external coupling of the zipper strap structure is performed with very high accuracy and precision. In addition, when the zipper strap structure is operated, a user can intuitively recognize whether the zipper strap structure is opened or closed by senses of touch and hearing. Since a user can effectively seal contents by the internal and external coupling of the zipper strap structure and can clearly recognize an operation state of the zipper by senses of touch and hearing, the user does not have to perform repeated checking of whether or not a zipper is completely closed, unlike the related art.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 8, 2024
    Inventors: Sang Kil JUNG, Won Sang CHO, Moon Seok SHIM
  • Patent number: 11884453
    Abstract: A child safety zipper includes a first zipper strip that is attached to an inside wall on one side of a plastic bag and a second zipper strip that is attached to an inside wall on the other side of the plastic bag and is coupled to the first zipper strip to seal the plastic bag.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: January 30, 2024
    Assignee: ZIPPIAN CO., LTD.
    Inventors: Sang Kil Jung, Won Sang Cho, Moon Seok Shim
  • Publication number: 20230002122
    Abstract: A child safety zipper includes a first zipper strip that is attached to an inside wall on one side of a plastic bag and a second zipper strip that is attached to an inside wall on the other side of the plastic bag and is coupled to the first zipper strip to seal the plastic bag.
    Type: Application
    Filed: March 2, 2020
    Publication date: January 5, 2023
    Inventors: Sang Kil JUNG, Won Sang CHO, Moon Seok SHIM
  • Patent number: D996209
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: August 22, 2023
    Assignee: Zippian Co., Ltd.
    Inventors: Sang Kil Jung, Won Sang Cho, Moon Seok Shim