Inventor · disambiguated record
David E. Helgerson
Also filed as: HELGERSON DAVID E
7 granted patents·1 pending application·139 citations·filing 1994–2025
87Inventor score
Technology areasB65G
Files withMAGSTAR TECHNOLOGIES INC3AUTOMATION INC2QUICKDRAW DESIGN AND DRAFTING2ACTIVAR TECHNICAL PRODUCTS GRO1
Top patents by PatentIndex Score
8 records- 0187US6959804B2Conveyor assemblyMAGSTAR TECHNOLOGIES INC·Filed 2003·Granted Nov 1, 2005·36 cites·16 claims
- 0285US7175018B2Conveyor assemblyMAGSTAR TECHNOLOGIES INC·Filed 2005·Granted Feb 13, 2007·18 cites·9 claims
- 0383US7748520B1Slip roller conveyorACTIVAR TECHNICAL PRODUCTS GRO·Filed 2008·Granted Jul 6, 2010·21 cites·19 claims
- 0480US12384635B2Adjustable tray stacker/destacker assemblyAUTOMATION INC·Filed 2024·Granted Aug 12, 2025·1 cites·20 claims
- 0575US2025353692A1Adjustable tray stacker/destacker assemblyAUTOMATION INC·Filed 2025·Application pending·0 cites
- 0671US5558206AConveyor technologyQUICKDRAW DESIGN AND DRAFTING·Filed 1994·Granted Sep 24, 1996·29 cites·20 claims
- 0769US5558205AConveyorsQUICKDRAW DESIGN AND DRAFTING·Filed 1994·Granted Sep 24, 1996·27 cites·15 claims
- 0863US7503450B2Long roller slip conveyorMAGSTAR TECHNOLOGIES INC·Filed 2007·Granted Mar 17, 2009·7 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →