Inventor · disambiguated record
Robert Hallgren
Also filed as: HALLGREN ROBERT · HALLGREN ROBERT B
4 granted patents·107 citations·filing 1985–2002
79Inventor score
Top patents by PatentIndex Score
4 records- 0185US6474535B1Welding method and apparatusNYCOMED IMAGING AS·Filed 1999·Granted Nov 5, 2002·53 cites·22 claims
- 0271US4683458ACurrent-steering digital-to-analog converter for providing bi-directional currents through a loadHALLGREN ROBERT·Filed 1986·Granted Jul 28, 1987·34 cites·11 claims
- 0360US6926189B2Welding method and apparatusAMERSHAM HEALTH AS·Filed 2002·Granted Aug 9, 2005·8 cites·9 claims
- 0457US4639619AElectronic sampler switchHEWLETT PACKARD CO·Filed 1985·Granted Jan 27, 1987·12 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →