Inventor · disambiguated record
Alfons Spies
Also filed as: SPIES ALFONS
22 granted patents·586 citations·filing 1975–1999
96Inventor score
Top patents by PatentIndex Score
22 records- 0194US4595991APosition measuring method and apparatusHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Jun 17, 1986·54 cites·13 claims
- 0288US6542088B1Multiturn rotary encoder with multiple code carriers coupled by a reduction gearHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Apr 1, 2003·73 cites·12 claims
- 0388US4612502AMagnetic length or angle measuring system having improved magnetic sensor arrangementHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Sep 16, 1986·41 cites·18 claims
- 0484US5956659AArrangement and method for the automatic correction of error-containing scanning signals of incremental position-measuring devicesHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted Sep 21, 1999·52 cites·21 claims
- 0582US6018881APosition measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 1997·Granted Feb 1, 2000·48 cites·37 claims
- 0680US5386642APosition measuring instrumentHEIDENHAIN GMBH DR JOHANNES·Filed 1993·Granted Feb 7, 1995·47 cites·30 claims
- 0778US5747995AMagnetic position measuring device using Hall elements as sensors and method for its operationHEIDENHAIN GMBH DR JOHANNES·Filed 1996·Granted May 5, 1998·43 cites·12 claims
- 0876US5009506APhotoelectric position-measuring arrangement having a plurality of shiftable gridsHEIDENHAIN GMBH DR JOHANNES·Filed 1989·Granted Apr 23, 1991·26 cites·9 claims
- 0974US5627466APosition measuring device having a sensor for sensing the distance between a scanning unit and a scaleHEIDENHAIN GMBH DR JOHANNES·Filed 1994·Granted May 6, 1997·29 cites·23 claims
- 1074US4120093APlanar measuring instrumentHEIDENHAIN GMBH DR JOHANNES·Filed 1976·Granted Oct 17, 1978·22 cites·30 claims
- 1173US5120132APosition measuring apparatus utilizing two-beam interferences to create phase displaced signalsJOHANNES HEIDENHAIM GMBH DR·Filed 1990·Granted Jun 9, 1992·31 cites·14 claims
- 1273US4792678APhotoelectric angle measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1987·Granted Dec 20, 1988·23 cites·15 claims
- 1364US4260205AGas bearingHEIDENHAIN GMBH DR JOHANNES·Filed 1979·Granted Apr 7, 1981·15 cites·17 claims
- 1463US4490914AError correction system for position measuring instrumentsHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Jan 1, 1985·14 cites·22 claims
- 1560US4030282AResilient support for spinning-ring or twisting-ring bearingHEIDENHAIN GMBH DR JOHANNES·Filed 1975·Granted Jun 21, 1977·6 cites·6 claims
- 1655US4051657ASpinning-ring bearing and supportHEIDENHAIN GMBH DR JOHANNES·Filed 1975·Granted Oct 4, 1977·5 cites·6 claims
- 1753US4819546ADevice for measuring feed movementHEIDENHAIN GMBH DR JOHANNES·Filed 1987·Granted Apr 11, 1989·13 cites·6 claims
- 1850US5619132APosition measuring device employing primary and auxiliary magnetic fieldsHEIDENHAIN GMBH DR JOHANNES·Filed 1994·Granted Apr 8, 1997·14 cites·26 claims
- 1948US5734266ATwo piece measurement representation with magnetic elements magnetized with the same orientationHEIDENHAIN GMBH DR JOHANNES·Filed 1995·Granted Mar 31, 1998·13 cites·25 claims
- 2046US5841275AMagnetic measuring system having a particularly oriented auxiliary fieldHEIDENHAIN GMBH DR JOHANNES·Filed 1995·Granted Nov 24, 1998·11 cites·23 claims
- 2135US4251119AGas bearing for rapidly rotating partsHEIDENHAIN GMBH DR JOHANNES·Filed 1978·Granted Feb 17, 1981·4 cites·12 claims
- 2230US5111040APhotoelectric device for position measuringHEIDENHAIN GMBH DR JOHANNES·Filed 1991·Granted May 5, 1992·2 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Alfons Spies 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 →