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Last Updated: December 18, 2025

Claims for Patent: 7,918,833


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Summary for Patent: 7,918,833
Title:Pen-type injector
Abstract:The present invention relates to injectors, such as pen-type injectors, that provide for administration of medicinal products from a multidose-cartridge and permit a user to set the delivery dose. The injector may include a housing, a piston rod adapted to operate through the housing, a dose dial sleeve located between the housing and the piston rod, and a drive sleeve located between the dose dial sleeve and the piston rod. The dose dial sleeve may have a helical thread of first lead and the drive sleeve may have a helical groove of second lead. The first lead of the helical thread and the second lead of the helical groove may be the same.
Inventor(s):Robert Frederick Veasey, Robert Perkins, David Aubrey Plumptre
Assignee: Sanofi Aventis Deutschland GmbH
Application Number:US11/483,546

International Patent Family for US Patent 7,918,833

Country Patent Number Estimated Expiration
South Africa 200506819 ⤷  Get Started Free
South Africa 200506711 ⤷  Get Started Free
South Africa 200506658 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2010084164 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2004078242 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2004078241 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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