Frederick E. Severson

QI Qs Industries: 1 patents #1 of 2Top 50%

📍 Beaverton, OR: #130 of 468 inventorsTop 30%

🗺 Oregon: #902 of 4,070 inventorsTop 25%

Overall (2016): #143,212 of 481,213Top 30%

Patents 2016

Issued Patents 2016

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
9511303	Signaling and remote control train operation	—	2016-12-06
9449590	Low frequency audio sound effects in model railroading	Pat Quinn	2016-09-20