John J Li

US Patent:

20040038009, Feb 26, 2004

Filed:

Aug 21, 2002

Appl. No.:

10/225830

Inventors:

Richard Leyden - Topanga CA, US
Timothy Cleary - Sherman Oaks CA, US
John Li - Alhambra CA, US
Jacek Obuchowicz - South Cambridgeshire, GB
Richard Peace - Bedford, GB

International Classification:

B32B003/00

US Classification:

428/195100, 428/206000

Abstract:

The present invention provides unique material systems and methods for 3D printing of articles having enhanced strength and durability. The powder systems comprise a water-soluble crosslinkable agent, and alternatively or additionally, a strengthening component. Preferably, the crosslinkable agent is selected from the group consisting of amino resins, phenol resins, and mixed amino/phenol resins. The strengthening component melts and flows when heated, and resolidifies or cures. Preferably, the strengthening component melts, flows and cures with heat. In another aspect, the invention provides a powder/binder system comprising an oxidant and a reductant (a redox couple). When the binder is applied to the powder, the oxidant and reductant react to generate an acid that catalyzes crosslinking. As a result, the strength of the 3D article builds up at an enhanced rate. The oxidant may be in the powder, and the reductant in the binder; or the reductant may be in the powder, and the oxidant in the binder. Alternatively, both the oxidant and the reductant may be in the powder.

US Patent:

56541953, Aug 5, 1997

Filed:

Jul 1, 1994

Appl. No.:

8/268799

Inventors:

Joseph Sodroski - Medford MA
William A. Haseltine - Cambridge MA
Norman Letvin - Newton MA
John Li - Boston MA

Assignee:

Dana-Farber Cancer Institute - Boston MA

International Classification:

C12N 1586

US Classification:

4353201

Abstract:

A vector which can be used to establish a hybrid SIV/HIV-1 virus is described. This virus can be used to infect an animal such as a monkey to establish an animal model for in vivo testing. This animal model can be used for purposes such as screening for therapeutics, adjuvants and vaccines.

US Patent:

20220331152, Oct 20, 2022

Filed:

Apr 20, 2022

Appl. No.:

17/725229

Inventors:

- Stamford CT, US
Steve Lepke - Wakefield MA, US
Vincent Lambert - Salisbury MA, US
John Li - Brooklyn NY, US

International Classification:

A61F 7/00

Abstract:

A wearable device includes a housing to encompass a portion of a body part, biometric sensors coupled to the housing, a controller coupled to the housing and biometric sensors, a communication channel for communicating with external devices and a temperature regulator to controllably adjust a temperature of the housing. The wearable device is configured to provide remote controlled heating and cooling of the body part. The wearable device may include an evaporative heat exchanger and a thermoelectric heat pump. The wearable device may provide means for dissipating heat through vaporization of a substance or using an advective flux and phase transition.

Address:

27969 Cp Plenty Rd, Canyon Country, CA 91351

VIN:

WVGBV75N49W519842

Make:

VOLKSWAGEN

Model:

TIGUAN

Year:

2009

Address:

24422 Silver Spur Ln, Laguna Niguel, CA 92677

VIN:

KNAGE228795354223

Make:

KIA

Model:

OPTIMA

Year:

2009