David Bruce Webber

US Patent:

8012448, Sep 6, 2011

Filed:

Jul 9, 2010

Appl. No.:

12/833859

Inventors:

Richard L. Brutchey - Los Angeles CA, US
Matthew A. Franzman - Sherman Oaks CA, US
David H. Webber - Los Angeles CA, US

Assignee:

University of Southern California - Los Angeles CA

International Classification:

C01B 17/00
C01B 19/00
C01B 19/04

US Classification:

423508, 423509, 423511, 4235921, 423624, 4235611, 977773, 977775, 977811, 977762

Abstract:

A method of synthesizing metal chalcogenide nanocrystals involving the steps of combining an organodichalcogenide, a metal salt and a ligand compound to form a mixture; degassing the mixture to remove air and water from the mixture; heating the mixture at a temperature below the decomposition temperature of the organodichalcogenide for a period of time sufficient to form a metal chalcogenide nanocrystal.

US Patent:

20230095274, Mar 30, 2023

Filed:

Jan 21, 2021

Appl. No.:

17/794429

Inventors:

- Pasadena CA, US
Rehan KAPADIA - Los Angeles CA, US
Angelica SAENZ - Pasadena CA, US
David WEBBER - Los Angeles CA, US

International Classification:

B05D 1/18
C09D 7/40
B05D 3/12
B05D 7/00

Abstract:

Methods of forming a monolayer of nanoparticles are described. The method may include forming an activated surface on a substrate. Methods may also include contacting the activated surface with a fluid including nanoparticles. Methods may further include forming a plurality of monolayers in the liquid on the activated surface. The plurality of nanoparticles may include a first monolayer of nanoparticles bonded to the activated surface. The plurality of nanoparticles may include a second monolayer of nanoparticles bonded to the first monolayer of nanoparticles. The bond strengths between a nanoparticle and the underlying substrate, between adjacent nanoparticles, and between nanoparticles of adjacent monolayers may be related by a specific relationship. The method may also include removing monolayers of the plurality of monolayers while retaining the first monolayer to form the substrate with the first monolayer. Systems for performing the methods and substrates resulting from the methods are also described.

US Patent:

20190177588, Jun 13, 2019

Filed:

Dec 10, 2018

Appl. No.:

16/215435

Inventors:

- Los Angeles CA, US
David Hugh Webber - Los Angeles CA, US

Assignee:

Xotramorphic LLC - Los Angeles CA

International Classification:

C09K 3/24
C07C 229/08
B05B 1/24
A63J 5/02

Abstract:

The present invention relates to compositions, methods, and systems for the production of flocculent material. The composition of the invention contains at least one standard or non-standard amino acid, and optionally contains one or more sublimable or evaporable dyes. Flocculent material is made by heating the composition until a vapor is produced, and cooling the heated composition to produce a flocculent material. The system for producing flocculent material includes the composition, a heat source; and one or more walls surrounding the heat source.