Inventor

HALLGREN ROBERT

US3 patents

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

NYCOMED IMAGING AS

1 patent

US6474535B1Nov 5, 2002

Welding method and apparatus

NYCOMED IMAGING AS53 citations91

HALLGREN ROBERT

1 patent

US4683458AJul 28, 1987

Current-steering digital-to-analog converter for providing bi-directional currents through a load

HALLGREN ROBERT34 citations84

AMERSHAM HEALTH AS

1 patent

US6926189B2Aug 9, 2005

Welding method and apparatus

AMERSHAM HEALTH AS8 citations69