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Robert WUERFEL
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Kempten, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for hard finishing modified gears
Patent number
11,253,937
Issue date
Feb 22, 2022
Liebherr-Verzahntechnik GmbH
Hansjoerg Geiser
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Information
Patent Grant
Method of producing a workpiece having a modified gearing geometry
Patent number
10,773,356
Issue date
Sep 15, 2020
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing a workpiece having a desired gear geometry
Patent number
10,603,730
Issue date
Mar 31, 2020
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing a toothed workpiece having a modified surface g...
Patent number
10,583,508
Issue date
Mar 10, 2020
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for gear manufacturing machining
Patent number
10,569,349
Issue date
Feb 25, 2020
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing a toothed workpiece having a modified surface g...
Patent number
10,500,659
Issue date
Dec 10, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing one or more workpieces
Patent number
10,500,657
Issue date
Dec 10, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing a toothed workpiece having a modified surface g...
Patent number
10,493,546
Issue date
Dec 3, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
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Information
Patent Grant
Method of dressing a tool
Patent number
10,343,256
Issue date
Jul 9, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B24 - GRINDING POLISHING
Information
Patent Grant
Method of dressing a tool
Patent number
10,322,461
Issue date
Jun 18, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
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Information
Patent Grant
Method and apparatus for the gear manufacturing machining of a work...
Patent number
10,293,423
Issue date
May 21, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
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Information
Patent Grant
Method for the manufacture of a workpiece having a corrected gear t...
Patent number
10,286,469
Issue date
May 14, 2019
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for hard finishing modified gears
Patent number
10,173,278
Issue date
Jan 8, 2019
Liebherr-Verzahntechnik GmbH
Hansjoerg Geiser
B24 - GRINDING POLISHING
Information
Patent Grant
Method for the location determination of the involutes in gears
Patent number
10,018,459
Issue date
Jul 10, 2018
Lienherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for the gear manufacturing machining of a workpiece by a dia...
Patent number
9,969,019
Issue date
May 15, 2018
Liebherr-Verzahnechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for the gear manufacturing machining of a work...
Patent number
9,873,160
Issue date
Jan 23, 2018
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR HARD FINISHING MODIFIED GEARS
Publication number
20190111505
Publication date
Apr 18, 2019
LIEBHERR-VERZAHNTECHNIK GMBH
Hansjoerg Geiser
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
PROCESS FOR GEAR MANUFACTURING MACHINING
Publication number
20180161896
Publication date
Jun 14, 2018
LIEBHERR-VERZAHNTECHNIK GMBH
Robert Wuerfel
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Information
Patent Application
METHOD OF PRODUCING A WORKPIECE HAVING A MODIFIED GEARING GEOMETRY
Publication number
20170080546
Publication date
Mar 23, 2017
Liebherr-Verzahntechnik GmbH
Robert WUERFEL
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF DRESSING A TOOL
Publication number
20170008148
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert WUERFEL
B24 - GRINDING POLISHING
Information
Patent Application
METHOD OF PRODUCING A TOOTHED WORKPIECE HAVING A MODIFIED SURFACE G...
Publication number
20170008107
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
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Information
Patent Application
METHOD OF PRODUCING A WORKPIECE HAVING A DESIRED GEAR GEOMETRY
Publication number
20170008105
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert WUERFEL
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF PRODUCING A TOOTHED WORKPIECE HAVING A MODIFIED SURFACE G...
Publication number
20170008106
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF PRODUCING ONE OR MORE WORKPIECES
Publication number
20170008104
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert WUERFEL
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF PRODUCING A TOOTHED WORKPIECE HAVING A MODIFIED SURFACE G...
Publication number
20170008108
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF DRESSING A TOOL
Publication number
20170008109
Publication date
Jan 12, 2017
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR THE MANUFACTURE OF A WORKPIECE HAVING A CORRECTED GEAR T...
Publication number
20160214196
Publication date
Jul 28, 2016
LIEBHERR-VERZAHNTECHNIK GMBH
Robert Wuerfel
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Information
Patent Application
METHOD AND APPARATUS FOR THE GEAR MANUFACTURING MACHINING OF A WORK...
Publication number
20160214193
Publication date
Jul 28, 2016
LIEBHERR-VERZAHNTECHNIK GMBH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD AND APPARATUS FOR THE GEAR MANUFACTURING MACHINING OF A WORK...
Publication number
20160214194
Publication date
Jul 28, 2016
LIEBHERR-VERZAHNTECHNIK GMBH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR THE GEAR MANUFACTURING MACHINING OF A WORKPIECE BY A DIA...
Publication number
20160214197
Publication date
Jul 28, 2016
LIEBHERR-VERZAHNTECHNIK GMBH
Robert Wuerfel
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR THE LOCATION DETERMINATION OF THE INVOLUTES IN GEARS
Publication number
20150338201
Publication date
Nov 26, 2015
Liebherr-Verzahntechnik GmbH
Robert Wuerfel
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Information
Patent Application
METHOD AND APPARATUS FOR HARD FINISHING MODIFIED GEARS
Publication number
20130280990
Publication date
Oct 24, 2013
Hansjoerg Geiser
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