JG

John Richard Gumley

EI Erico International: 1 patents #85 of 144Top 60%
📍 Bothwell, AU: #4 of 58 inventorsTop 7%
Overall (All Time): #1,276,249 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6320119 Lightning air terminals and method of design and application 2001-11-20
6226166 Transient overvoltage and lightning protection of power connected equipment Christopher John Kossmann 2001-05-01
5995352 Ignition apparatus and method 1999-11-30
4760213 Lightning conductor 1988-07-26