Inventor

HELSTROM TERRY C

US4 patents

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

XM SATELLITE RADIO INC

2 patents

US7260356B2Aug 21, 2007

Method and apparatus for wirelessly coupling a source signal to a radio frequency receiver

XM SATELLITE RADIO INC25 citations91

US6621458B1Sep 16, 2003

Combination linearly polarized and quadrifilar antenna sharing a common ground plane

XM SATELLITE RADIO INC30 citations90

XM SATELLITE RADIO

1 patent

US6661386B1Dec 9, 2003

Through glass RF coupler system

XM SATELLITE RADIO40 citations88

DELPHI D ANTENNA SYSTEMS

1 patent

US6806838B2Oct 19, 2004

Combination satellite and terrestrial antenna

DELPHI D ANTENNA SYSTEMS32 citations87