How to inquire about American patent, patent number: US6615821b1.

Patents are universal and can be seen everywhere.

Patent name/application number camping stove US200202 17900

Applicant/patentee Mark Stevens Industries [USA]

Inventor Fesenko Igor G [America]

Date of application: August 2002-13

Date of publication/announcement: September 9, 2003

I'll give you a website:/pages/pages/tool/patentsearch.aspx. You can look up patents.