MASSENGILL FAMILY TRUST R. KEMP MASSENGILL & ESTHER S. MASSENGILL, CO-TRUSTEES

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Patent Activity in the Last 10 Years

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A61B DIAGNOSIS; SURGERY; IDENTIFICATION 3237

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6290357 Kinetic visual field apparatus and methodMar 24, 00Sep 18, 01[A61B]
6145991 Rule based visual field autointerpretation systemNov 01, 99Nov 14, 00[A61B]
5864384 Visual field testing method and apparatus using virtual realityJul 31, 96Jan 26, 99[A61B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6592222 Flicker and frequency doubling in virtual realityExpiredJul 02, 01Jul 15, 03[A61B]
6386706 Visual function testing with virtual retinal displayExpiredDec 20, 99May 14, 02[A61B]
6033076 Visual field testing via telemedicineExpiredDec 02, 98Mar 07, 00[A61B]
6027217 Automated visual function testing via telemedicineExpiredOct 26, 98Feb 22, 00[A61B]
5910834 Color on color visual field testing method and apparatusExpiredSep 23, 97Jun 08, 99[A61B]
5898474 Visual field testing method and apparatusExpiredMay 28, 97Apr 27, 99[A61B]

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