Seung Sarah Yang

US Patent:

41853474, Jan 29, 1980

Filed:

Jun 9, 1978

Appl. No.:

5/914136

Inventors:

Seung H. Yang - Long Island City NY

International Classification:

A43D 500

US Classification:

121146

Abstract:

A boot stretcher for selectively stretching all or different portions of a boot, comprising interconnected front and rear halves which comprise a main body that generally conforms to the overall shape of the upper or calf portion of the boot. The halves are movable in opposite directions for selectively stretching the boot and are interconnected by means of a linkage operably associated with a longitudinally threaded rod which can be manipulated by hand to move the halves between various closed and extended or spread apart positions for accomplishing the stretching operation.

US Patent:

20200030202, Jan 30, 2020

Filed:

Jul 30, 2018

Appl. No.:

16/049310

Inventors:

- Paris, FR
Anne-Laure Suzanne Bernard - New-York NY, US
Seung Yang - Clark NJ, US

International Classification:

A61K 8/25
A61K 8/19
A61K 8/44
A61K 8/43
A61K 8/41
A61K 8/365
A61K 8/368
A61Q 19/00

Abstract:

The instant disclosure relates to methods for treating skin, for example, methods for desquamation of the skin of the face. The methods use a two-step process of first treating the skin with an alkaline composition having a pH of at least 8 followed by a second step of treating the skin with an acidic composition having a pH of 5 of less. The acidic composition includes one or more α- and/or β-hydroxy acids, which react with the skin to cause desquamation and stimulate new skin cell growth. Treating the skin with the claimed alkaline compositions improves the efficacy of the treatment with the acidic composition while reducing skin irritation and discomfort.