Inventor
Joshua Friedman
Inventor
Ridgefield, CT, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Cprimary
A61CDentistry35%
G02BOptical elements, systems or apparatus6%
A61BDiagnosis5%
A61KPreparations for medical, dental or toiletry purposes5%
B05CApparatus for applying fluent materials to surfaces, in general5%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
H05BElectric heating5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations3%
A61QSpecific use of cosmetics or similar toiletry preparations3%
PatentTitleYear
11,092,083Pressure sensor assembly for a turbine engine202110,611,088Device and methods for optimizing post-curing time of 3D printed products202010,548,688Device and method for heating dental composite materials202010,172,690Device and method for heating dental composite materials2019D0819060Display screen with graphical user interface20189,932,583Compositions and methods for treating liver injury20189,427,162'Dental shade matching method and device'20169,279,158'Compositions and methods useful for the treatment and diagnosis of inflammatory bowel disease'20167,175,436'Optical composite cure radiometer and method'20077,097,452'Heated compule'20067,094,057'Dental light curing member and method'20067,015,423'Heating device for dental material'20066,908,607'Dental bleaching gel composition and activator'20056,616,448'Dispenser for heating and extruding dental material'20036,554,463'Optical waveguide concentrator and illuminating device'20036,511,321'Dental adaptor device'20036,485,709'Dental bleaching gel composition, activator system and method for activating a dental bleaching gel'20026,320,162'Method for preheating dental materials'20016,312,254'Dispenser for heating and extruding dental material'20016,236,020'Heating assembly for preheating dental materials'20015,371,826'Dental fiber optic light bundle with uniform taper'19945,290,169'Optical light guide for dental light-curing lamps'19945,220,827'Method for testing the hardness of a dental composite material'19935,201,655'Optical light guide for controlling the irradiation of a dental restorative material'19934,948,215'Dental light-curing lamp unit with interchangeable autofocus light guides'19904,924,070'Apparatus for controlled irradiation'1990D0298965'Combined light filter and shield for a dental curing lamp'19884,661,070'Method for bleaching discolored teeth'19874,330,274'Lighting system for a dental handpiece'19824,221,994'Photo curing light source'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1994Patents assigned to DEMETRON RES CORP (2)· patent assignee history
1980–2020Based in Ridgefield, CT, US· patent location history
1982–2016Patents assigned to FRIEDMAN JOSHUA (13)· patent assignee history
1993–2020Based in Danbury, CT, US· patent location history
2002–2020Patents assigned to ADDENT INC (6)· patent assignee history
2003Patents assigned to AD DENT INC (1)· patent assignee history
2016–2018Based in Ardmore, PA, US· patent location history
2018Patents assigned to CHILDRENS HOSPITAL PHILADELPHIA (1)· patent assignee history
2018Based in San Francisco, CA, US· patent location history
2021Based in Jacksonville, FL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FRIEDMAN JOSHUAself | 13 | 1982–2016 |
| ADDENT INC | 6 | 2002–2020 |
| DEMETRON RES CORP | 2 | 1980–1994 |
| AD DENT INC | 1 | 2003 |
| CHILDRENS HOSPITAL PHILADELPHIA | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ridgefield, CT, US | 13 | 1980–2020 |
| Danbury, CT, US | 12 | 1993–2020 |
| Ardmore, Pennsylvania, US | 2 | 2016–2018 |
| Jacksonville, Florida, US | 1 | 2021 |
| San Francisco, California, US | 1 | 2018 |