RK

Robert A. Kimball

DU Durel: 11 patents #1 of 35Top 3%
RO Rogers: 2 patents #58 of 245Top 25%
WP World Properties: 2 patents #22 of 86Top 30%
Overall (All Time): #291,577 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11710759 Single contact relief print generator David A. Hardinger, Spencer R. Canizales, Sang Hoon Chae, Frederick Frye, Dong Hyuk JANG 2023-07-25
7876399 Liquid crystal display with split electrode Mark A. Seelhammer, David G. Pires 2011-01-25
7843140 AC switch with zero off current for EL panel Christopher Eric Papke, Harold Gee Yee 2010-11-30
7190600 Single output EL driver producing reduced current spikes Kenneth Vi Ung, Harold Gee Yee 2007-03-13
7009346 Driving an EL panel without DC bias Mahyar Vahabzadeh, William A. Coghlan 2006-03-07
6597123 Inverter for driving EL lamp and liquid crystal display Brian Buell 2003-07-22
6580222 Inverter for driving EL lamp and light emitting diodes Brian Buell 2003-06-17
6462485 EL driver for small semiconductor die 2002-10-08
6407507 Personal electronic device having EL lamp and buzzer powered from a single inductor 2002-06-18
6204609 Enhanced inverter for powering an EL lamp 2001-03-20
5502357 Low cost inverter for EL lamp 1996-03-26
5493183 Open loop brightness control for EL lamp 1996-02-20
5483503 Split chip inverter for EL lamp 1996-01-09
5349269 Power supply having dual inverters for electroluminescent lamps 1994-09-20
5347198 Low cost AC switch for electroluminescent lamps 1994-09-13
5313141 Three terminal inverter for electroluminescent lamps 1994-05-17