The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2018
Filed:
Jun. 22, 2015
Elwha Llc, Bellevue, WA (US);
Paul Duesterhoft, Grapevine, TX (US);
William David Duncan, Mill Creek, WA (US);
Roderick A. Hyde, Redmond, WA (US);
Jordin T. Kare, San Jose, CA (US);
Eric C. Leuthardt, St. Louis, MO (US);
Tony S. Pan, Bellevue, WA (US);
Lowell L. Wood, Jr., Bellevue, WA (US);
ELWHA LLC, Bellevue, WA (US);
Abstract
An unmanned aerial vehicle may be used to mark airborne material in a plume. The unmanned aerial vehicle may store a macroscopic and/or microscopic tracer material. A sensor and/or control unit may detect a substance of interest in a plume. The sensor may be configured to detect multiple different substances sharing a particular characteristic. The unmanned aerial vehicle may be piloted along a gradient of increasing concentration of the substance of interest. The tracer material may be ejected into the plume. The tracer material may be configured to react and/or interact with the substance of interest. The unmanned aerial vehicle may be piloted a predetermined distance from the plume after the tracer material has been ejected. Additional and/or different tracer material may be ejected into the plume if it is determined from measurements that ejecting additional tracer material would be beneficial.