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).

  • 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: 9149053
    Abstract: A method for producing a composition comprising conjugated linoleic acid in an amount of at least 55% by weight, comprises: (i) providing a liquid mixture comprising, as the free acids, from 50 to 95% by weight conjugated linoleic acid and at least 5% by weight of saturated C12-C22 fatty acids; (ii) cooling the liquid mixture to a temperature at which at least a part of the saturated C12-C22 fatty acids precipitate from the mixture as a solid; and (iii) separating the solid from the liquid, wherein the liquid obtained in (iii) comprises conjugated linoleic acid in an amount of at least 55% by weight.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 6, 2015
    Assignee: STEPAN SPECIALTY PRODUCTS LLC
    Inventors: Jeroen Monster, Youchun Yan
  • Patent number: D797994
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 19, 2017
    Inventor: Youchun Yan
  • Patent number: D806228
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: December 26, 2017
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventor: Youchun 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