Inventor · disambiguated record
Ralph L. Hollis, Jr.
Also filed as: HOLLIS JR RALPH L · HOLLIS JR RALPH LEROY · HOLLIS RALPH · HOLLIS RALPH L
13 granted patents·1 pending application·829 citations·filing 1983–2024
94Inventor score
Top patents by PatentIndex Score
14 records- 0196US7847504B2Dynamic balancing mobile robotUNIV CARNEGIE MELLON·Filed 2007·Granted Dec 7, 2010·88 cites·26 claims
- 0295US5146566AInput/output system for computer user interface using magnetic levitationIBM·Filed 1991·Granted Sep 8, 1992·288 cites·10 claims
- 0394US4520570APiezoelectric x-y-positionerIBM·Filed 1983·Granted Jun 4, 1985·60 cites·6 claims
- 0491US8497767B2Magnetic levitation haptic interface systemHOLLIS JR RALPH LEROY·Filed 2010·Granted Jul 30, 2013·34 cites·14 claims
- 0591US5434504APosition sensors for linear motors including plural symmetrical fluxes generated by a planar drive coil and received by planar sense coils being colinear along an axis of motionIBM·Filed 1993·Granted Jul 18, 1995·89 cites·31 claims
- 0688US4745681AControlled pin insertion using airflow sensing and active feedbackIBM·Filed 1987·Granted May 24, 1988·56 cites·15 claims
- 0785US6175169B1Closed-loop planar linear motor with integral monolithic three-degree-of-freedom AC-magnetic position/orientation sensorHOLLIS RALPH L JR·Filed 1999·Granted Jan 16, 2001·76 cites·11 claims
- 0881US5153494AUltrafast electro-dynamic x, y and theta positioning stageIBM·Filed 1990·Granted Oct 6, 1992·43 cites·50 claims
- 0981US4514674AElectromagnetic X-Y-Theta precision positionerIBM·Filed 1983·Granted Apr 30, 1985·39 cites·5 claims
- 1079US4684547AFormat patterning method for magnetic recording mediaIBM·Filed 1985·Granted Aug 4, 1987·24 cites·12 claims
- 1175US9853528B2Spherical induction motorCARNEGIE MELLON UNIV CTTEC·Filed 2014·Granted Dec 26, 2017·5 cites·34 claims
- 1267US4509002APrecision X-Y positionerIBM·Filed 1983·Granted Apr 2, 1985·23 cites·6 claims
- 1360US2025294624A1Automatic Device Pairing Using a Docking StationMIDLAND RADIO CORP·Filed 2024·Application pending·0 cites
- 1442US6545375B2Field-joinable platen tiles for planar motorsHOLLIS JR RALPH L·Filed 2001·Granted Apr 8, 2003·4 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Ralph L. Hollis, Jr. files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →