Inventor
GOLDFAIN ERVIN
US67 patents
⚠️ This page may combine multiple inventors who share the name “GOLDFAIN ERVIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WELCH ALLYN INC
40 patentsUS6390625B1May 21, 2002
Focusing mechanism
WELCH ALLYN INC195 citations99
US10028648B2Jul 24, 2018
Borescopic optical system for medical diagnostic instruments and medical diagnostic instruments having interlocking assembly features
WELCH ALLYN INC40 citations98
US9931028B2Apr 3, 2018
Replacement light assembly
WELCH ALLYN INC37 citations98
US9237847B2Jan 19, 2016
Ophthalmoscope device
WELCH ALLYN INC40 citations98
US10238462B2Mar 26, 2019
Digital-based medical devices
WELCH ALLYN INC38 citations97
US10028649B2Jul 24, 2018
Digital colposcope system
WELCH ALLYN INC46 citations97
US6007204ADec 28, 1999
Compact ocular measuring system
WELCH ALLYN INC121 citations95
US9814377B2Nov 14, 2017
Medical instrument having LED illumination system
WELCH ALLYN INC38 citations94
US9757031B2Sep 12, 2017
Ophthalmoscope device
WELCH ALLYN INC29 citations94
US7364297B2Apr 29, 2008
Digital documenting ophthalmoscope
WELCH ALLYN INC109 citations93
US10159409B2Dec 25, 2018
Opthalmoscope device
WELCH ALLYN INC12 citations92
US8944596B2Feb 3, 2015
Digital-based medical devices
WELCH ALLYN INC25 citations92
US7784940B2Aug 31, 2010
Eye viewing device comprising video capture optics
WELCH ALLYN INC28 citations92
US7618159B2Nov 17, 2009
Vented iris control for luminaire
WELCH ALLYN INC23 citations92
US7399275B2Jul 15, 2008
Otoscope
WELCH ALLYN INC51 citations92
US7311401B2Dec 25, 2007
Eye viewing device comprising eyepiece and video capture optics
WELCH ALLYN INC13 citations92
US6637882B1Oct 28, 2003
Eye viewing device for retinal viewing through undilated pupil
WELCH ALLYN INC23 citations92
US6065837AMay 23, 2000
Ophthalmoscope comprising defocused light source
WELCH ALLYN INC31 citations92
USD379514SMay 27, 1997
Compact telescoping retinoscope
WELCH ALLYN INC31 citations90
US7803110B2Sep 28, 2010
Veterinary otoscope
WELCH ALLYN INC21 citations89
US10335029B2Jul 2, 2019
Opthalmoscope device
WELCH ALLYN INC8 citations84
US9636004B2May 2, 2017
Replacement light assembly
WELCH ALLYN INC10 citations84
US9198566B2Dec 1, 2015
Replacement light assembly
WELCH ALLYN INC10 citations84
US9014792B2Apr 21, 2015
Method and apparatus for analyzing subsurfaces of a target material
WELCH ALLYN INC5 citations84
US7553020B2Jun 30, 2009
Medical diagnostic instrument with variable focus liquid lens
WELCH ALLYN INC18 citations84
US6830347B2Dec 14, 2004
Eye viewing device comprising eye cup
WELCH ALLYN INC16 citations84
US10136804B2Nov 27, 2018
Automatic fundus image capture system
WELCH ALLYN INC14 citations83
US9642517B2May 9, 2017
Digital-based medical devices
WELCH ALLYN INC4 citations83
USD598545SAug 18, 2009
Digital otoscope
WELCH ALLYN INC14 citations82
US11653848B2May 23, 2023
Vital sign detection and measurement
WELCH ALLYN INC4 citations73
US11096627B2Aug 24, 2021
Medical examination system enabling interchangeable instrument operating modes
WELCH ALLYN INC5 citations73
US10674907B2Jun 9, 2020
Opthalmoscope device
WELCH ALLYN INC1 citations73
US10078226B2Sep 18, 2018
Portable eye viewing device enabled for enhanced field of view
WELCH ALLYN INC2 citations73
US6939006B2Sep 6, 2005
Eye viewing device for large field viewing
WELCH ALLYN INC8 citations73
US6527390B2Mar 4, 2003
Eye viewing device for large field viewing
WELCH ALLYN INC12 citations73
US11553981B2Jan 17, 2023
Digital-based medical devices
WELCH ALLYN INC1 citations72
US5459535AOct 17, 1995
Compact telescoping retinoscope
WELCH ALLYN INC7 citations70
US11457802B2Oct 4, 2022
Borescopic optical system for medical diagnostic instruments and medical diagnostic instruments having interlocking assembly features
WELCH ALLYN INC0 citations63
US10213098B2Feb 26, 2019
Laser configured otoscope
WELCH ALLYN INC1 citations63
US9675246B2Jun 13, 2017
Borescopic optical system for medical diagnostic instruments and medical diagnostic instruments having interlocking assembly features
WELCH ALLYN INC1 citations63
ANDREASSEN ERIC M
2 patentsINTEGRA LIFESCIENCES CORP
2 patentsLIA RAYMOND A
1 patentDANNA DOMINICK
1 patentGOLDFAIN ERVIN
1 patentHAND HELD PROD INC
1 patentSTRONG JAMES
1 patentWOOD ROBERT J
1 patentShowing the top 50 of 67 patents by PatentIndex Score.