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EJ

E. Roy John — 7 Patents

Mamaroneck, NY: #37 of 184 inventorsTop 25%
New York: #20,477 of 115,490 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
E. Roy John has been granted 7 US patents. The first was granted in 1980 and the most recent in October 1985. E. Roy John ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list E. Roy John in Mamaroneck, NY, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
4545388 Self-normed brain state monitoring 1985-10-08
4417592 Digital electroencephalographic instrument and method 1983-11-29
4411273 System and method for electrode pair derivations in electroencephalography 1983-10-25
4279258 Rapid automatic electroencephalographic evaluation 1981-07-21
4216781 Methods of electrophysiological testing 1980-08-12
4201224 Electroencephalographic method and system for the quantitative description of patient brain states 1980-05-06
4188956 Method for the analysis, display and classification of multivariate indices of brain function--a functional electrophysiological brain scan 1980-02-19