Stephen S Chu

US Patent:

7059852, Jun 13, 2006

Filed:

May 26, 2004

Appl. No.:

10/854667

Inventors:

Stephen J. Chu - New York NY, US

Assignee:

ATK Dental, LLC - Summit NJ

International Classification:

A61C 19/04

US Classification:

433 72

Abstract:

A dental measurement instrument having a handle and a measuring gauge extending from one end of the handle. In one embodiment, the measuring gauge has at least two calibrated measurement shafts in fixed spatial relationship with each other, each shaft bearing a plurality of calibration indicia. The calibration indicia on the two shafts are correlated with each other in a specific predetermined mathematical relationship.

US Patent:

7163395, Jan 16, 2007

Filed:

Jul 22, 2004

Appl. No.:

10/896466

Inventors:

Stephen J. Chu - New York NY, US

International Classification:

A62C 19/14

US Classification:

433 72

Abstract:

A dental measurement instrument having a handle and a measuring gauge extending from one end of the handle. In one embodiment, the measuring gauge has at least two calibrated measurement shafts, each shaft bearing a plurality of calibration indicia. The calibration indicia on the two shafts are correlated with each other in a specific predetermined mathematical relationship.

US Patent:

8425231, Apr 23, 2013

Filed:

Jan 23, 2012

Appl. No.:

13/356359

Inventors:

Mark N. Hochman - Great Neck NY, US
Stephen J. Chu - New York NY, US
Jocelyn Huiping Tan-Chu - New York NY, US
Adam J. Mieleszko - Arverne NY, US

International Classification:

A61C 8/00

US Classification:

433173, 433174

Abstract:

A dental implant arrangement and method has a hollow shell with outer bio-compatible surface for engaging a soft-tissue socket that is left in gingival tissue after a tooth has been extracted, to promote healing. The shell tapers outwardly from a first to a second perimeter, the second perimeter being asymmetrically scalloped with opposite distal and mesial peaks and opposite lingual and facial valleys between the peaks. A dental implant in the bone socket left after tooth extraction is rigidly connected to a temporary post, the temporary post extending in the shell. A luting compound fills the volume between shell and post and solidifies, thereby connecting shell to post and indirectly to the dental implant with no other connection between the shell and the implant so that the outer surface of the shell engages against the soft-tissue socket without gaps and without requiring alignment between the shell and implant axes.

US Patent:

D692561, Oct 29, 2013

Filed:

Nov 15, 2012

Appl. No.:

29/437342

Inventors:

Mark N. Hochman - Great Neck NY, US
Stephen J. Chu - New York NY, US
Jocelyn Huiping Tan-Chu - New York NY, US
Adam J. Mieleszko - Arverne NY, US

International Classification:

2402

US Classification:

D24156

US Patent:

20050196039, Sep 8, 2005

Filed:

Feb 10, 2005

Appl. No.:

11/055401

Inventors:

Wolfgang Bengel - Bensheim, DE
Stephen Chu - New York NY, US

International Classification:

G06K009/00
G06K009/36

US Classification:

382162000, 382286000

Abstract:

A method for consistently determining color information of an object utilizing a high resolution digital image taken with a digital camera. The object is set in a fixed environmental and lighting condition and the digital camera is set with certain predetermined fixed settings to provide consistent and repeatable digital images. The digital image is taken with a predetermined neutral reference adjacent the object. A commercially available image editing software is used to standardize and analyze the color information of the digital image based on the neutral reference.

US Patent:

20130189646, Jul 25, 2013

Filed:

Oct 18, 2012

Appl. No.:

13/655056

Inventors:

Mark N. HOCHMAN - Great Neck NY, US
Stephen J. CHU - New York NY, US
Jocelyn Huiping TAN-CHU - New York NY, US
Adam J. MIELESZKO - Arverne NY, US

International Classification:

A61C 8/00

US Classification:

433174

Abstract:

A dental implant has a hollow shell with outer bio-compatible surface for engaging a soft tissue socket left in gingival tissue after a tooth has been extracted, to promote healing. The shell tapers outwardly from a first to a second perimeter, the second perimeter being asymmetrically scalloped with opposite distal and mesial peaks and opposite lingual and facial valleys between the peaks. A dental implant in the bone socket left after tooth extraction is rigidly connected to a temporary post, the temporary post extending in the shell. The shell engages against the soft tissue socket without gaps and without requiring alignment between the shell and implant axes.

US Patent:

20130288202, Oct 31, 2013

Filed:

Jun 27, 2013

Appl. No.:

13/928460

Inventors:

Mark N. HOCHMAN - Great Neck NY, US
Stephen J. CHU - New York NY, US
Jocelyn Huiping TAN-CHU - New York NY, US
Adam J. MIELESZKO - Arverne NY, US

International Classification:

A61C 8/00

US Classification:

433175

Abstract:

An immediate dental implant shell has outer, multiple zones for engaging a soft tissue socket left immediately after tooth extraction from a bone socket. The zones have combinations of different biologic agents, macro- or micro-geometric, or micro- or macro-morphology irregularities to better engage gingival sulcus, junctional epithelium and dento-gingival fiber zones of the soft tissue socket. The shell may also have various guide markings and projections to aide drilling of the implant hole in the bone socket. A dental implant is placed in the drilled implant hole before or after the shell has been placed in the soft tissue socket, and has an axis that is independent of the shell axis so the shell and implant both sit in optimum positions in their respective soft and bone sockets.

US Patent:

20200046467, Feb 13, 2020

Filed:

Oct 18, 2019

Appl. No.:

16/657513

Inventors:

Stephen J. Chu - New York NY, US
Jocelyn Huiping Tan-Chu - New York NY, US

International Classification:

A61C 8/00
A61C 8/02

Abstract:

A pontic device for preserving soft tissue in a tooth-extraction site includes a generally curved apical end. The apical end has a first perimeter and is configured to rest in a tooth extraction socket and substantially conform to soft tissue of a tooth-extraction site immediately after a tooth has been extracted. The pontic device further includes an opposing, generally concave coronal end. The coronal end has a second perimeter that is configured to substantially correspond to and form a seal with gingival tissue surrounding the tooth-extraction site. The coronal end is configured to receive a tooth-shaped coronal pontic portion to form a final restoration.