Inventor
JOHNSEN ANDREW
US12 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSEN ANDREW”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OSRAM SYLVANIA INC
10 patentsUS7863827B2Jan 4, 2011
Ceramic metal halide lamp bi-modal power regulation control
OSRAM SYLVANIA INC36 citations86
US7841742B2Nov 30, 2010
Circuit board slot for an integral HID reflector lamp
OSRAM SYLVANIA INC9 citations81
US10327295B2Jun 18, 2019
Multi string controller with independent current setting for each string
OSRAM SYLVANIA INC0 citations51
US7982402B2Jul 19, 2011
Integrated igniter base for ceramic metal halide light source
OSRAM SYLVANIA INC1 citations51
US7839098B2Nov 23, 2010
Microcontroller based ignition in high frequency ceramic metal halide lamps
OSRAM SYLVANIA INC0 citations49
US10225908B2Mar 5, 2019
Active damping circuit
OSRAM SYLVANIA INC0 citations48
US9992846B2Jun 5, 2018
Active damping circuit
OSRAM SYLVANIA INC1 citations48
US7931514B2Apr 26, 2011
Method of making an integral HID reflector lamp
OSRAM SYLVANIA INC0 citations38
US7919926B2Apr 5, 2011
Aggregate ignition method in high frequency metal halide lamps
OSRAM SYLVANIA INC0 citations34
US8378585B2Feb 19, 2013
High frequency integrated HID lamp with run-up current
OSRAM SYLVANIA INC0 citations30