Patents by Inventor Youchun Yan

Youchun Yan 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: 20240337270
    Abstract: Disclosed is a guide structure for an air-suction nozzle, including a main body and guide combs built in the main body, where the main body is provided with a plurality of first air outlets, and a plurality of transverse guide fins are formed along a length direction the guide combs. One transverse guide fin corresponds to one first air outlet, and the transverse guide fins are configured to limit the turbulent air flow between different first air outlets. In the present disclosure, the guide combs are arranged to guide and divert the air flow entering the main body, and the transverse guide fins restrict the turbulent air flow between different first air outlets, resulting in that the air flow from each first air outlet is more even.
    Type: Application
    Filed: December 20, 2023
    Publication date: October 10, 2024
    Inventors: Gang Li, Youchun Yan
  • Patent number: 10357890
    Abstract: A detachable floating shaver includes a head, a casing having a third through hole, a main housing, a first floating member, and a second floating member. Through the connection and positioning relationship between the two parent and child pivot portions, that is, the first floating member and the second floating member, the head can achieve a cross rotation relative to the main housing. The second floating member has a connecting member; through the detachable connection between the second floating member and the connecting member, the head of the shaver is detachably connected, which is convenient for replacement, cleaning and maintenance and is more practical. The shaver can achieve 360° rotation through two parent and child pivot portions and two elastic sleeves, and the effect of floating contact of the shaver with the user's face is good.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: July 23, 2019
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventors: Youchun Yan, Guang Lu, Lili Yan
  • Publication number: 20190061182
    Abstract: A detachable floating shaver includes a head, a casing having a third through hole, a main housing, a first floating member, and a second floating member. Through the connection and positioning relationship between the two parent and child pivot portions, that is, the first floating member and the second floating member, the head can achieve a cross rotation relative to the main housing. The second floating member has a connecting member; through the detachable connection between the second floating member and the connecting member, the head of the shaver is detachably connected, which is convenient for replacement, cleaning and maintenance and is more practical. The shaver can achieve 360° rotation through two parent and child pivot portions and two elastic sleeves, and the effect of floating contact of the shaver with the user's face is good.
    Type: Application
    Filed: July 21, 2017
    Publication date: February 28, 2019
    Inventors: Youchun YAN, Guang LU, Lili YAN
  • Patent number: D812301
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 6, 2018
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventor: Youchun Yan
  • Patent number: D819274
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 29, 2018
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventor: Youchun Yan
  • Patent number: D823542
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 17, 2018
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Guang Lu
  • Patent number: D824103
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: July 24, 2018
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventor: Youchun Yan
  • Patent number: D824175
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 31, 2018
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventor: Youchun Yan
  • Patent number: D824595
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: July 31, 2018
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventor: Youchun Yan
  • Patent number: D826567
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 28, 2018
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Yongjun Deng
  • Patent number: D836837
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 25, 2018
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventor: Youchun Yan
  • Patent number: D838989
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: January 29, 2019
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Yongjun Deng
  • Patent number: D844242
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: March 26, 2019
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Guang Lu
  • Patent number: D844246
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: March 26, 2019
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Guang Lu
  • Patent number: D863574
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 15, 2019
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Yongjun Deng
  • Patent number: D863578
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: October 15, 2019
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Yongjun Deng
  • Patent number: D864405
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 22, 2019
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Youchun Yan, Yongjun Deng
  • Patent number: D866750
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: November 12, 2019
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventors: Youchun Yan, Gang Li, Denglin Yang
  • Patent number: D1037557
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: July 30, 2024
    Inventors: Gang Li, Yuzhen Deng, Youchun Yan
  • Patent number: D1041075
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: September 3, 2024
    Inventors: Gang Li, Yuzhen Deng, Youchun Yan