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Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US42523154 Jun 197924 Feb 1981Training aid for foot muscles
US47099215 Mar 19861 Dec 1987Weighted insole
US478414316 Nov 198715 Nov 1988Method for correcting human gait by weighting of footwear
US526792719 Aug 19927 Dec 1993Exercise shoe with nested weight modules
US563861324 Sep 199617 Jun 1997J. H. Williams Inventions, Inc.Weighted flexible shoe insole
US575843522 Jul 19962 Jun 1998Miyata Co., Ltd.Training shoes for applying a larger-than-normal load
US59014734 Apr 199711 May 1999Method for converting a game shoe to a weighted training shoe
US63414347 Jul 200029 Jan 2002Inner sole of a shoe containing weights
US65023316 Dec 20007 Jan 2003Athletic training shoe inserts and method of fabrication
US651987816 Apr 200118 Feb 2003Miyata Co., Ltd.Shoe soles
US679605823 Dec 200228 Sep 2004Rigiflex LLCRigid and flexible shoe
US71818698 Mar 200427 Feb 2007adidas International Marketing B.V.Shoe with optimal mass distribution
US74413492 Oct 200628 Oct 2008adidas International Marketing B.V.Shoe with optimal mass distribution
US754010018 May 20062 Jun 2009The Timberland CompanyFootwear article with adjustable stiffness
US82150374 Feb 200910 Jul 2012Nike, Inc.Footwear with plurality of interlocking midsole and outsole elements

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