David C Ho

US Patent:

D482710, Nov 25, 2003

Filed:

Nov 25, 2002

Appl. No.:

29/171573

Inventors:

David Gian-Teh Ho - Diamond Bar CA 91765

International Classification:

1606

US Classification:

D16132

US Patent:

7026350, Apr 11, 2006

Filed:

May 3, 2004

Appl. No.:

10/837785

Inventors:

David K. Ho - North Potomac MD, US
Raya Mandler - Bethesda MD, US
Kaye B. Dillah Upadhyay - Gaithersburg MD, US
David J. Newman - Wayne PA, US

Assignee:

The United States of America as represented by the Department of Health and Human Services - Washington DC

International Classification:

C07D 225/04
A61K 47/48
A61P 35/00

US Classification:

514425, 540461

Abstract:

The present invention relates to water-soluble drugs, compositions containing same, and, in particular, a water-soluble analogue of geldanamycin. This invention also relates to a method of producing water-soluble analogues of water-insoluble drugs through derivatization and conjugation with a polar moiety via a thiol ether bond with a heterobifunctional linking molecule.

US Patent:

7336433, Feb 26, 2008

Filed:

May 23, 2006

Appl. No.:

11/439624

Inventors:

David Gian-Teh Ho - Diamond Bar CA, US

International Classification:

G02B 7/02
G02B 27/30
G01B 11/26

US Classification:

359823, 359641, 359826, 356153

Abstract:

A laser collimator includes an optical lens having an optical axis; a sliding lens holder for housing the lens having a longitudinal opening parallel to the optical axis; a stationary lens holder ring for fitting to the front of the sliding lens holder and having a protruding key for receiving the longitudinal opening; and a focusing ring movable along the optical axis, wherein the protruding key placed within the longitudinal opening prevents the sliding lens holder from rotating.

US Patent:

7377556, May 27, 2008

Filed:

Nov 2, 2005

Appl. No.:

11/266653

Inventors:

David Gian-Teh Ho - Diamond Bar CA, US

International Classification:

F16L 19/00

US Classification:

285338, 2853825

Abstract:

An adapter mount for attaching to a fitting tube includes an adapter tube having an outer circumferential surface; a first expandable ring placed on the outer circumferential surface of the adapter tube and comprising of elastic material for expanding and fitting to the inner surface of the fitting tube; an adjustment ring configured to be threaded to the adapter tube to generate a rotational threading force; a compression ring for translating the rotational threading force from the adjustment ring to a longitudinal compressing displacement of the first expandable ring, causing an outer surface of the first expandable ring to fit to the inner surface of the fitting tube; and a stop attached to the adapter tube for preventing the adjustment ring from separating from the adapter tube.

US Patent:

7811558, Oct 12, 2010

Filed:

Aug 12, 2005

Appl. No.:

11/202376

Inventors:

David Ho - Fairfax VA, US
Cindy S. Orser - McLean VA, US
Alan S. Rudolph - Potomac MD, US

Assignee:

Cellphire, Inc. - Rockville MD

International Classification:

A01N 65/00

US Classification:

424 9372

Abstract:

The present invention provides compositions comprising freeze-dried platelets, microparticles, or both for use as a hemostat, such as for treating bleeding or injuries associated with bleeding. It also provides methods of treating injuries or wounds, and methods of causing blood to clot. Likewise, it provides methods of promoting healing of wounds or of healing wounds.

US Patent:

7862744, Jan 4, 2011

Filed:

Jul 23, 2008

Appl. No.:

12/178527

Inventors:

David Losan Ho - Los Angeles CA, US
Zhenghao Wan - Wyuishan, CN

Assignee:

Mamtek International Limited - Hong Kong

International Classification:

C09K 3/00
C07H 17/02
C07H 1/00
C07H 1/06
B01D 11/00
B01D 21/01
B01D 37/00

US Classification:

25218212, 536 172, 536124, 536127, 210634, 210734, 210767, 210770

Abstract:

The present invention provides a method for preparing DMF for sucralose production, including, e. g. , isolating DMF from a composition comprising DMF, water, and methanol, using a single-tower rectification system. In various embodiments of the present invention, the composition, after the removal of water and methanol, may be further dried/dehydrated, such as, by using a dehydration agent and/or filtration. The resulting substantially pure DMF may comprise at least about 98-99% DMF. The present invention further provides a method of preparing a composition comprising anhydrous sucrose for sucralose production, which may comprise mixing regular sucrose with a water-containing DMF composition, and drying the resulting sucrose-DMF composition. Also provided is a single-tower separation system for isolating DMF from a composition comprising DMF, water, and methanol.

US Patent:

7931308, Apr 26, 2011

Filed:

Apr 17, 2008

Appl. No.:

12/105182

Inventors:

David Gian-Teh Ho - Diamond Bar CA, US

International Classification:

F16L 19/00

US Classification:

285338, 285346, 42119, 359829

Abstract:

An adapter clamp for clamping an adapting tube. The adapter clamp includes: an adapter tube; a first resilient ring placed in the inner circumferential surface of the adapter tube and including elastic material for expanding inward and clamping to the outer surface of the adapting tube; a hollow adjustment ring configured to be threaded to the inner surface of the adapter tube to generate a displacement force; and a compression ring providing minimum friction resistant for translating the displacement force from the threading hollow adjustment ring to a longitudinal compressing displacement of the first resilient ring, causing an inner surface of the first resilient rings to fit to the outer surface of the adapting tube. The adapter clamp also includes a second resilient ring placed in the inner circumferential surface of the adapter tube; and a spacer placed on the inner circumferential surface of the adapter tube.

US Patent:

8097403, Jan 17, 2012

Filed:

Dec 14, 2007

Appl. No.:

11/956830

Inventors:

David Ho - McLean VA, US
Heather Jones - Germantown MD, US

Assignee:

Cellphire, Inc. - Rockville MD

International Classification:

A01N 1/02
A01N 63/00
G01N 33/86

US Classification:

435 2, 424 9372, 436 69

Abstract:

The present invention provides freeze-dried platelets and compositions comprising freeze-dried platelets for use as a diagnostic and calibration reagent for blood coagulation function. The invention also provides methods of diagnosing or monitoring blood coagulation function, including diagnosing or monitoring blood coagulation diseases and disorders. Kits for performing the methods of the invention are also included.