Inventor
VOLLMER ROLF
DE76 patents
⚠️ This page may combine multiple inventors who share the name “VOLLMER ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIEMENS AG
36 patentsUS7141905B2Nov 28, 2006
Permanent magnet synchronous machine
SIEMENS AG61 citations96
US6483221B1Nov 19, 2002
Electric motor
SIEMENS AG76 citations95
US6879079B2Apr 12, 2005
Permanent magnet rotor electrical synchronous machine with different alternatively arranged tooth pitch widths
SIEMENS AG21 citations93
US6858965B2Feb 22, 2005
Stator for a synchronous machine
SIEMENS AG26 citations93
US6628031B2Sep 30, 2003
Harmonic-frequency synchronous machine with flux concentration
SIEMENS AG28 citations93
US8026640B2Sep 27, 2011
Electric machine having a rotary and a linear actuator
SIEMENS AG20 citations92
US7564158B2Jul 21, 2009
Three-phase synchronous machine having a permanent magnet rotor with an induction cage
SIEMENS AG24 citations92
US7285883B2Oct 23, 2007
Drive system for linear and rotary movements
SIEMENS AG25 citations92
US6812612B2Nov 2, 2004
Stator for a synchronous machine
SIEMENS AG48 citations92
US6768238B2Jul 27, 2004
Rotor for a permanent magnet synchronous machine
SIEMENS AG44 citations92
US7777373B2Aug 17, 2010
Cooling device of an electrical machine
SIEMENS AG23 citations91
US7732967B2Jun 8, 2010
Electrical machine comprising a winding system with coil groups
SIEMENS AG25 citations91
US6943467B2Sep 13, 2005
Electric machine with heat pipes
SIEMENS AG46 citations91
US6885187B2Apr 26, 2005
Transmitter system for a ferraris motion transmitter
SIEMENS AG20 citations90
US8378541B2Feb 19, 2013
Magnetic radial bearing and magnetic bearing system having a three-phase controller
SIEMENS AG14 citations84
US7977826B2Jul 12, 2011
Multipole permanent-magnet synchronous machine having tooth-wound coils
SIEMENS AG13 citations84
US7915777B2Mar 29, 2011
Ring coil motor
SIEMENS AG16 citations84
US7859160B2Dec 28, 2010
Electric machine with concentrated windings
SIEMENS AG17 citations84
US7755315B2Jul 13, 2010
Rotary linear drive having a transmitter device
SIEMENS AG18 citations84
US7709984B2May 4, 2010
Device for determining a shaft center deviation
SIEMENS AG16 citations84
US7705507B2Apr 27, 2010
Electrical machine having a three-phase winding system
SIEMENS AG14 citations84
US8035371B2Oct 11, 2011
Measuring system for detecting a rotary-linear displacement and corresponding rotary-linear drive
SIEMENS AG14 citations79
US9935534B2Apr 3, 2018
Electric machine with permanently excited inner stator
SIEMENS AG6 citations73
US10097055B2Oct 9, 2018
Permanently-excited dynamoelectric machine
SIEMENS AG2 citations72
US9343935B2May 17, 2016
Rotor of a permanently excited synchronous machine
SIEMENS AG5 citations71
US10014737B2Jul 3, 2018
Rotor for an electric machine
SIEMENS AG2 citations70
US11031838B2Jun 8, 2021
Housing unit for an electric machine
SIEMENS AG2 citations66
US9673672B2Jun 6, 2017
Individual-segment rotor having retaining rings
SIEMENS AG3 citations65
US12184132B2Dec 31, 2024
Method for manufacturing a magnetic sheet and a stack of magnetic sheets and electric machine and electric vehicle
SIEMENS AG0 citations63
US11482893B2Oct 25, 2022
Material layer for high rotational speeds
SIEMENS AG1 citations63
US11215235B2Jan 4, 2022
Coupling element having vibration damping
SIEMENS AG0 citations63
US12129892B2Oct 29, 2024
Bearing bush for a rotating shaft, bearing shield, electric motor and method for manufacturing a damping element
SIEMENS AG0 citations62
US12057745B2Aug 6, 2024
Cooling-optimised housing of a machine
SIEMENS AG0 citations62
US12519357B2Jan 6, 2026
Rotor with permanent magnets
SIEMENS AG0 citations61
US11451121B2Sep 20, 2022
Method for producing a material layer and a material layer structure for a dynamoelectric rotary machine
SIEMENS AG1 citations61
US9509185B2Nov 29, 2016
Rotor with permanent excitation including permanent magnets and soft-magnetic flux conducting elements therebetween, electric machine having such a rotor and manufacturing method for the rotor
SIEMENS AG2 citations60
VOLLMER ROLF
4 patentsUS8134273B2Mar 13, 2012
Electrical machine with skew-running magnet pole boundaries
VOLLMER ROLF23 citations90
US8441158B2May 14, 2013
Linear motor with reduced force ripple
VOLLMER ROLF11 citations84
US8283815B2Oct 9, 2012
Electrical machine
VOLLMER ROLF15 citations84
US8115360B2Feb 14, 2012
Electric machine with stepped winding structure
VOLLMER ROLF14 citations84
WALTER AG
3 patentsUS5911548AJun 15, 1999
Tool for the production of arc-shaped grooves
WALTER AG45 citations92
US5676505AOct 14, 1997
Method and milling tool to make deep grooves in a workpiece, especially in rotors of generators and turbines
WALTER AG39 citations89
US5755536AMay 26, 1998
indexable cutting insert
WALTER AG24 citations88
BOTT ERICH
2 patentsGROSSMANN UDO
1 patentWALTER GMBH MONTANWERKE
1 patentFICK MICHAEL
1 patentBUDDE THOMAS
1 patentPOTORADI DETLEF
1 patentShowing the top 50 of 76 patents by PatentIndex Score.