Patents by Inventor Liangchuan Wan

Liangchuan Wan 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: 8522792
    Abstract: A smoking cessation tobacco pipe helps smokers to fully and directly realize the harm of tobacco to a human body when they are smoking and give up smoking and publicize smoking cessation. The tobacco pipe is a transparency which is assembled with a top cover part (2) integrated with a smoke-inlet pipe (3) and a smoke-outlet pipe (4), a box body part (1), a bottom cover part (6) and a smoking pipe part (5), wherein the smoke-outlet pipe (4) is connected with the smoking pipe part (5), and when in use the tobacco is placed at the opening of the smoke-inlet pipe (3). A series of tiny holes are provided on the smog route from the smoke-inlet pipe (3) to the smoke-outlet pipe (4), where the tiny holes are arranged and assembled to form warning characters or patterns, which warn that smoking is harmful to health. The characters and patterns are strengthened due to the adhesive attachment of smoke.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: September 3, 2013
    Inventor: Liangchuan Wan
  • Publication number: 20120037170
    Abstract: A smoking cessation tobacco pipe helps smokers to fully and directly realize the harm of tobacco to a human body when they are smoking and give up smoking and publicize smoking cessation. The tobacco pipe is a transparency which is assembled with a top cover part (2) integrated with a smoke-inlet pipe (3) and a smoke-outlet pipe (4), a box body part (1), a bottom cover part (6) and a smoking pipe part (5), wherein the smoke-outlet pipe (4) is connected with the smoking pipe part (5), and when in use the tobacco is placed at the opening of the smoke-inlet pipe (3). A series of tiny holes are provided on the smog route from the smoke-inlet pipe (3) to the smoke-outlet pipe (4), where the tiny holes are arranged and assembled to form warning characters or patterns, which warn that smoking is harmful to health. The characters and patterns are strengthened due to the adhesive attachment of smoke.
    Type: Application
    Filed: April 22, 2010
    Publication date: February 16, 2012
    Inventor: Liangchuan Wan