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| Number | Title | Issue Date |
| 7059068 | Height adjustable flexible shoe A height adjustable flexible shoe including a shoe upper portion having an open upper end, a closed lower end, and a body portion therebetween. The open upper end is dimensioned for receiving a foot therein. The closed lower end has a toe portion and a back portion.... | 06/13/2006 |
| 6962008 | Full bearing 3D cushioning system The invention relates to a sliding element for a shoe sole. The sliding element includes an upper sliding surface and a lower sliding surface, wherein the lower sliding surface is arranged below the upper sliding surface so as to be slideable in at least two directi... | 11/08/2005 |
| 6711835 | Shoe and replaceable heel A shoe (100) includes a heel base (120) having a front surface (122); a plate (200) having a front portion (210) and a rear portion (220) adjoining at a angle (285) of less than 90 degrees; and at least one replaceabl... | 03/30/2004 |
| 6655049 | Connector for attaching and detaching attachment to/from shoe sole A structure for inserting an insert member of an attachment, etc., into a concave receptacle portion embedded in a shoe sole and removably pinching and fixing the insert member inside the concave receptacle portion with an elastic member, the structure be... | 12/02/2003 |
| 6510625 | Structure for attaching and detaching attachment to/from shoe sole A connector includes an insert member for seating within a socket embedded in a shoe sole wherein it is removably fixed with an elastic member, the connector permitting the removal of the attachment with a wrench engaging a tool fitting portion formed on ... | 01/28/2003 |
| 6442871 | Shoe heel A shoe heel includes a rigid heel block that attaches to a shoe sole at the heel seat on the sole and a top lift having a molded base that is located below the heel block such that a space exists between the bottom of the block and the top of the base. Th... | 09/03/2002 |
| 5970630 | Rigid midsole footware structure with removable undercarriage attaching means A rigid midsole structure for footwear extends from the metatarsal area to a rear-most portion proximate the heel of a wearer. The rigid midsole accepts any form of replaceable undercarriage structure, and includes means for attaching the undercarriage st... | 10/26/1999 |
| 5806210 | Athletic shoe with improved heel structure A shoe includes a rear sole support for receiving a replaceable rear sole to provide longer wear. The shoe may also include a flexible plate supported by the rear sole support between the heel and the rear sole to reduce midsole compression and provide ad... | 09/15/1998 |
| 5692322 | Combination athletic shoes and plometric training device Combination athletic shoes and plyometric training devices are disclosed. The said shoes having removable heels that include a snap-lock track slide retainer fixedly disposed in the sole at the instep of the athletic shoe, a heel track slide retainer fixe... | 12/02/1997 |
| 4317294 | Replaceable shoe sole A replaceable shoe sole is comprised of a mid-sole, which is securely attached to the upper portion of the shoe, and an out-sole removeably attached to the mid-sole. The upper surface of the out-sole is provided with a continuous ridge which is snapped in... | 03/02/1982 |
