Ling S Li

US Patent:

7679563, Mar 16, 2010

Filed:

Jan 14, 2005

Appl. No.:

10/586117

Inventors:

Douglas H. Werner - State College PA, US
Theresa S. Mayer - Port Matilda PA, US
Jeremy A. Bossard - State College PA, US
Robert P. Drupp - Columbia MD, US
Xiaotao Liang - State College PA, US
Ling Li - State College PA, US

Assignee:

The Penn State Research Foundation - University Park PA

International Classification:

H01Q 1/38
H01Q 15/02

US Classification:

343700MS, 343909

Abstract:

An improved frequency selective surface (FSS) comprises a periodically replicated unit cell, the unit cell including a material having a first electrical conductivity in the presence of an external condition, and a second electrical conductivity in the absence of an external condition, or in the presence of a modified external condition. For example, the material may be a chemoresistive material, having an electrical conductivity that changes in the presence of a chemical or biological analyte, i. e. having a first value of electrical conductivity in the presence of the analyte, and a second value of electrical conductivity in the absence of the analyte.

US Patent:

20220273547, Sep 1, 2022

Filed:

Jul 27, 2020

Appl. No.:

17/630959

Inventors:

- Colombes, FR
Ling LI - Exton PA, US

International Classification:

A61K 8/81
A61Q 3/02
C08F 2/50

Abstract:

Photocurable compositions which include a). at least one (meth)acrylate-functionalized monomer; b). at least one (meth)acrylate-functionalized oligomer; c). particles of at least one core/shell copolymer; and d). at least one photoinitiator are useful for forming durable, impact resistant coatings on nails.

US Patent:

20210011305, Jan 14, 2021

Filed:

Jul 10, 2020

Appl. No.:

16/926352

Inventors:

- Plantation FL, US
Victor Kai Liu - Mountain View CA, US
Samarth Bhargava - Saratoga CA, US
Ling Li - Austin TX, US
Sharad D. Bhagat - Austin TX, US
Christophe Peroz - San Francisco CA, US
Jason Donald Mareno - Raleigh NC, US

Assignee:

Magic Leap, Inc. - Plantation FL

International Classification:

G02B 30/52
G02B 27/00

Abstract:

A dynamic eyepiece for projecting an image to an eye of a viewer includes a waveguide layer having an input surface, an output surface opposing the input surface, and a periphery. The waveguide layer is configured to propagate light therein. The dynamic eyepiece also includes a mechanical structure coupled to at least a portion of the periphery of the waveguide layer. The mechanical structure is operable to apply a first mechanical force to the at least a portion of the periphery of the waveguide layer to impose a first surface profile on the output surface of the waveguide layer and apply a second mechanical force to the at least a portion of the periphery of the waveguide layer to impose a second surface profile different from the first surface profile on the output surface of the waveguide layer.