Ling Qiang Li

US Patent:

7754718, Jul 13, 2010

Filed:

May 2, 2005

Appl. No.:

11/579284

Inventors:

Hosup Yeo - Daegu, KR
David J. Austin - New York NY, US
Ling Li - Bellaire TX, US
Yung-chi Cheng - Woodbridge CT, US

Assignee:

Yale University - New Haven CT

International Classification:

A61K 31/502
C07D 237/26

US Classification:

514248, 544233

Abstract:

The present invention relates to novel antiviral helioxanthin analogs. These compounds may particularly be used alone or in combination with other drugs for the treatment of the following: hepadnaviruses, flaviviruses, herpesviruses and human immunodeficiency virus. In addition, compounds according to the present invention can be used to prevent or reduce the likelihood of the occurrence of tumors secondary to virus infection as well as other infections or disease states that are secondary to the virus infection.

US Patent:

20210382221, Dec 9, 2021

Filed:

Aug 23, 2021

Appl. No.:

17/409163

Inventors:

- Plantation FL, US
Brian George Hill - Duxbury MA, US
Christophe Peroz - San Francisco CA, US
Chieh Chang - Cedar Park TX, US
Ling Li - Cedar Park TX, US

International Classification:

F21V 8/00
G02B 27/01

Abstract:

A diffractive waveguide stack includes first, second, and third diffractive waveguides for guiding light in first, second, and third visible wavelength ranges, respectively. The first diffractive waveguide includes a first material having first refractive index at a selected wavelength and a first target refractive index at a midpoint of the first visible wavelength range. The second diffractive waveguide includes a second material having a second refractive index at the selected wavelength and a second target refractive index at a midpoint of the second visible wavelength range. The third diffractive waveguide includes a third material having a third refractive index at the selected wavelength and a third target refractive index at a midpoint of the third visible wavelength range. A difference between any two of the first target refractive index, the second target refractive index, and the third target refractive index is less than 0.005 at the selected wavelength.

US Patent:

20200400870, Dec 24, 2020

Filed:

Jun 23, 2020

Appl. No.:

16/909201

Inventors:

- Plantation FL, US
Brian George Hill - Duxbury MA, US
Christophe Peroz - San Francisco CA, US
Chieh Chang - Cedar Park TX, US
Ling Li - Cedar Park TX, US

International Classification:

F21V 8/00
G02B 27/01

Abstract:

A diffractive waveguide stack includes first, second, and third diffractive waveguides for guiding light in first, second, and third visible wavelength ranges, respectively. The first diffractive waveguide includes a first material having first refractive index at a selected wavelength and a first target refractive index at a midpoint of the first visible wavelength range. The second diffractive waveguide includes a second material having a second refractive index at the selected wavelength and a second target refractive index at a midpoint of the second visible wavelength range. The third diffractive waveguide includes a third material having a third refractive index at the selected wavelength and a third target refractive index at a midpoint of the third visible wavelength range. A difference between any two of the first target refractive index, the second target refractive index, and the third target refractive index is less than 0.005 at the selected wavelength.