Inventor · disambiguated record
Robert L. Risberg
Also filed as: RISBERG ROBERT · RISBERG ROBERT L
13 granted patents·442 citations·filing 1971–2020
93Inventor score
Top patents by PatentIndex Score
13 records- 0197US4216367AWireless remote control for electric welderMILLER ELECTRIC MFG·Filed 1978·Granted Aug 5, 1980·103 cites·12 claims
- 0295US4769754AStabilized welding power source including a series-resonant current-regulated converter using a transformer having an air-gapped coreMILLER ELECTRIC MFG·Filed 1987·Granted Sep 6, 1988·90 cites·9 claims
- 0385US7516129B2Method of indexing digitized entities in a data collection to facilitate searchingPICSEARCH AB·Filed 2002·Granted Apr 7, 2009·59 cites·9 claims
- 0485US4370703ASolid state frequency converterPARK OHIO INDUSTRIES INC·Filed 1981·Granted Jan 25, 1983·46 cites·12 claims
- 0582US4465943AUninterrupted power system with frequency and phase controlRISBERG ROBERT L·Filed 1983·Granted Aug 14, 1984·54 cites·9 claims
- 0679US4435632AThree phase square wave welding power supplyHOBART BROTHERS CO·Filed 1982·Granted Mar 6, 1984·28 cites·15 claims
- 0778US7539675B2Indexing of digitized entitiesPICSEARCH AB·Filed 2006·Granted May 26, 2009·18 cites·10 claims
- 0877US11922918B2Noise controlling method and systemFaurecia Creo Ab·Filed 2020·Granted Mar 5, 2024·2 cites·15 claims
- 0971US4054818ASolid state current source polyphase inverter induction motor driveRISBERG ROBERT L·Filed 1975·Granted Oct 18, 1977·18 cites·11 claims
- 1043US4623910ASemiconductor deviceRISBERG ROBERT L·Filed 1982·Granted Nov 18, 1986·11 cites·7 claims
- 1141US4811072ASemiconductor deviceRISBERG ROBERT L·Filed 1986·Granted Mar 7, 1989·11 cites·34 claims
- 1236US11087735B2Active noise control method and systemFaurecia Creo Ab·Filed 2018·Granted Aug 10, 2021·0 cites·18 claims
- 1333US4180767AClosed-loop regulating and overhauling load energy dissipating chopper type current control system for D.C. MotorsCUTLER HAMMER INC·Filed 1971·Granted Dec 25, 1979·2 cites·11 claims
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