Inventor

ASHRAF AHTASHAM

US7 patents

⚠️ This page may combine multiple inventors who share the name “ASHRAF AHTASHAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CENTRAL SIGNAL LLC

3 patents

US8888052B2Nov 18, 2014

BALDWIN DAVID

2 patents

US8469320B2Jun 25, 2013

Vital solid state controller

BALDWIN DAVID16 citations91

US8517316B2Aug 27, 2013

Vehicle detection system

BALDWIN DAVID8 citations82

ASHRAF AHTASHAM

1 patent

US8157219B2Apr 17, 2012

Vehicle detection system

ASHRAF AHTASHAM31 citations92

BALDWIN DAVID E

1 patent

US9026283B2May 5, 2015

Train detection

BALDWIN DAVID E12 citations75