US Patent 7581442 Optically monitoring fullness of fluid container

Patent 7581442 was granted and assigned to Microsoft on September, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Microsoft

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75814420

Patent Inventor Names

Benjamin David Eidelson0

Paul Dietz0

Date of Patent

September 1, 2009

Patent Application Number

120423030

Date Filed

March 4, 2008

Patent Citations Received

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US Patent 11865251 Electronic vaping device having formulation level indicator

Patent Primary Examiner

Hezron Williams

Patent abstract

A relative fullness of a fluid container is monitored by directing reference light at a bottom surface of the fluid container. The fluid container is designed so that the amount or pattern of reference light reflected from the fluid container varies in relation to the relative fullness of the fluid container. Accordingly, the relative amount or pattern of reference light reflected from the fluid container can be monitored and used to determine the relative fullness of the fluid container.