1
Jerry D Stubblefield: Athletic shoe sole. Saidman Sterne & Kessler, June 19, 1984: US04454662 (124 worldwide citation)

A sole for an athletic shoe, such as a cleated soccer or football shoe, comprises a thin, unitary member formed of flexible material. The member has a contour or configuration which renders the flexible material substantially rigid at the arch and heel portions of the sole. This provides substantial ...


2
Jerry D Stubblefield: Shoe sole construction. AVIA Group International, Saidman Sterne Kessler & Goldstein, May 3, 1988: US04741114 (122 worldwide citation)

A shoe sole including an outer sole of substantially uniform thickness and a midsole. The midsole has peripheral portions that are relatively thick compared to its central portion which is relatively thin. The lower surface of the midsole is preferably configured as a concavity. The outer sole has a ...


3
James K Tong, Lawrence Selbiger, Jerry D Stubblefield, Jack Curley: Athletic shoe having an insert member in the outsole. Avia Group International, Sterne Kessler Goldstein & Fox, February 16, 1993: US05185943 (116 worldwide citation)

The present invention relates to an insert member for use within the sole region of an athletic shoe. The insert member is made from a resilient material and provides improved energy return to the outsole to enhance recovery from the forces applied to the shoe.


4
Jerry D Stubblefield: Basketball shoe sole. Pensa, Saidman Sterne Kessler & Goldstein, November 5, 1985: US04550510 (114 worldwide citation)

An outer sole especially designed for basketball shoes which is lightweight, stable, and provides a greater degree of shock absorption than heretofore possible. The sole includes a plurality of kinetic levers or tread members which extend downwardly and outwardly from the peripheral portion of the b ...


5
Jerry D Stubblefield: Basketball shoe sole. Pensa, Saidman Sterne & Kessler, May 22, 1984: US04449307 (107 worldwide citation)

An outer sole especially designed for basketball shoes which is lightweight, stable, and provides a greater degree of shock absorption than heretofore possible. The sole includes a plurality of kinetic levers or tread members which extend downwardly and outwardly from the peripheral portion of the b ...


6
Jerry D Stubblefield: Shoe sole construction. Saidman Sterne & Kessler, February 8, 1983: US04372058 (103 worldwide citation)

A shoe sole having a tread preferably defining a longitudinally and/or laterally oriented concavity with the lower extremities of the sole embodied in downwardly and outwardly disposed flexible lugs to cushion the foot against impact loads. The tread members are preferably inclined at an obtuse angl ...


7
Jerry D Stubblefield: Basketball shoe sole. Pensa, Saidman Sterne Kessler & Goldstein, October 15, 1985: US04546556 (84 worldwide citation)

An outer sole especially designed for basketball shoes which is lightweight, stable, and provides a greater degree of shock absorption than heretofore possible. The sole includes a plurality of kinetic levers or tread members which extend downwardly and outwardly from the peripheral portion of the b ...


8
Jerry D Stubblefield: Shoe sole construction. Saidman & Sterne, June 22, 1982: US04335530 (80 worldwide citation)

A shoe sole construction which features an outer sole (18) having at least one opening (26) through which a protrusion (30) of a less dense midsole (16) extends. The cutout area (26) of the more dense outsole (18) decreases the overall weight of the sole (12), while the less dense protrusion (30) ai ...


9
Jerry D Stubblefield: Shoe sole construction. Pensa, Saidman Sterne & Kessler, November 13, 1984: US04481727 (44 worldwide citation)

A shoe sole construction which features an outer sole (18) having at least one opening (26) through which a protrusion (30) of a less dense midsole (16) extends. The cutout area (26) of the more dense outsole (18) decreases the overall weight of the sole (12), while the less dense protrusion (30) ai ...


10
Donald P Stubblefield, Jerry D Stubblefield: Apparatus and method for reducing fluid drag on a submerged surface. North Shore Partners, Design IP, September 11, 2007: US07267067 (3 worldwide citation)

An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. The apparatus creates a reduced pressure region by diverting a first portion of the flow away from the surface of the hull. An ai ...



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