Joshua B Friedman

Address:

200 E 61 St APT 35B, New York, NY 10065

Phone:

9176856999

VIN:

WP0AB29999S721401

Make:

PORSCHE

Model:

911

Year:

2009

US Patent:

6511321, Jan 28, 2003

Filed:

Nov 20, 2000

Appl. No.:

09/716804

Inventors:

Richard Trushkowsky - Morganville NJ
Joshua Friedman - Ridgefield CT

Assignee:

Ad Dent Inc. - Danbury CT

International Classification:

A61C 308

US Classification:

433164, 433 29

Abstract:

A dental device for assisting in the filling and curing of a dental restoration with light activated materials having a truncated conical shape with a disposable insert member at its apex. The conical holding device has an opening at the base to accommodate a light guide and an opening at the apex to accommodate a disposable insert member. Each insert member has a shape tapered at one end thereof and an indicator means to monitor the depth of the restoration to the pulpal floor and to provide alignment of the preparation relative to the marginal ridge of the adjacent tooth.

US Patent:

20050186531, Aug 25, 2005

Filed:

Feb 20, 2004

Appl. No.:

10/783924

Inventors:

Joshua Friedman - Ridgefield CT, US

International Classification:

A61C005/04

US Classification:

433090000

Abstract:

A compule for storing dental composite material to be extruded from the compule using a standard dispenser in the preparation or repair of a dental restoration. The compule comprises: a cylindrical body having an orifice at one end thereof through which the dental composite material is extruded and a means at the opposite end thereof to facilitate the extrusion of said dental composite material using the dispenser. The body of the compule may be surrounded by an electrically conductive plastic or composed of a thermally and electrically conductive plastic having a thermal conductivity in the range of between 1.0 w/mk and 500 w/mk and electrical resistivity in the range 0.01-10,000 ohm-cm.

US Patent:

20080306361, Dec 11, 2008

Filed:

Jun 11, 2007

Appl. No.:

11/811580

Inventors:

Joshua Friedman - Ridgefield CT, US

International Classification:

A61B 6/00

US Classification:

600306

Abstract:

An optical screening device for detecting abnormal skin tissue indicative of disease including a handle having an elongated stem adapted for holding the optical screening device in one hand and a head for housing an array of light emitting diodes with each diode in the array being spaced apart to form a given geometry with each diode selected to emit light in a wavelength range between 340 nm to 470 nm; a high pass filter supported by said handle in close proximity to said array of light emitting diodes with the filter being of a size to provide a defined viewable area for visibly detecting irradiated light reflected from skin tissue under observation and adapted to block light at least below 380 nm; and a source of electrical power for energizing said array of light emitting diodes.

US Patent:

20080306470, Dec 11, 2008

Filed:

May 5, 2008

Appl. No.:

12/151117

Inventors:

Joshua Friedman - Ridgefield CT, US

International Classification:

A61B 1/07
A61B 1/24

US Classification:

606 3

Abstract:

An optical screening device for detecting abnormal skin tissue indicative of disease including a handle having an elongated stem adapted for holding the optical screening device in one hand and a head for housing an array of light emitting diodes with each diode in the array being spaced apart to form a given geometry with each diode selected to emit light in a wavelength range between 340 nm to 470 nm; a high pass filter supported by said handle in close proximity to said array of light emitting diodes with the filter being of a size to provide a defined viewable area for visibly detecting irradiated light reflected from skin tissue under observation and adapted to block light at least below 400 nm; and a source of electrical power for energizing said array of light emitting diodes.

US Patent:

49240706, May 8, 1990

Filed:

Aug 10, 1989

Appl. No.:

7/392157

Inventors:

Joshua Friedman - Ridgefield CT

International Classification:

H05B 100

US Classification:

219346

Abstract:

Apparatus for supplying light and heat of variable intensity to a photocurable dental material. The apparatus includes a source of light, a reflector, a filter assembly, a light guide and an electrical fan. The heat is generated from the light source and is controllably directed by an arrangement of louvers with a manually adjustable lever through a passageway surrounding the light guide to the operatory site.

US Patent:

52016552, Apr 13, 1993

Filed:

Aug 2, 1991

Appl. No.:

7/742179

Inventors:

Joshua Friedman - Ridgefield CT

International Classification:

A61C 100
A61C 300
A61C 500

US Classification:

433 29

Abstract:

A light guide for use in combination with a light source for irradiating a dental restoration. The light guide includes two optical conductors having one end mounted in common for insertion into the light source and with the opposite end of each conductor spaced apart to form a gap into which radiant energy is directly uniformly from opposite sides of the gap.

US Patent:

49482157, Aug 14, 1990

Filed:

Aug 10, 1989

Appl. No.:

7/392023

Inventors:

Joshua Friedman - Ridgefield CT

International Classification:

G02B 614

US Classification:

350 9610

Abstract:

Assembly of interchangeable autofocus light guides of varying diameter for a dental curing light apparatus to provide maximum power density independently of the selection of light guide. Each light guide has an optic rod of a preselected diameter and a proximal end axially spaced from the focal spot, such that radiant energy incident upon the proximal end corresponds to a predetermined surface area matched to said preselected diameter. Each optic rod also has a head of common diameter for interchangeable insertion into the light-curing apparatus.

US Patent:

D2989654, Dec 13, 1988

Filed:

Jun 5, 1986

Appl. No.:

6/870857

Inventors:

Joshua Friedman - Ridgefield CT

US Classification:

D24 16