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Spyros P. Mellas
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Waterford, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Systems, methods, and apparatuses, of an arc welding (AW) process a...
Patent number
12,005,532
Issue date
Jun 11, 2024
GM Global Technology Operations LLC
Debejyo Chakraborty
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Real-time weld quality analysis systems and methods
Patent number
11,633,813
Issue date
Apr 25, 2023
GM Global Technology Operations LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of joining steel work-pieces having different gauge ratios
Patent number
11,590,601
Issue date
Feb 28, 2023
GM Global Technology Operations LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for weld performance validation
Patent number
11,559,848
Issue date
Jan 24, 2023
GM Global Technology Operations LLC
Tingting Zhang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Pretreatment of weld flanges to mitigate liquid metal embrittlement...
Patent number
11,548,091
Issue date
Jan 10, 2023
GM Global Technology Operations LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
System and method of enhanced automated welding of first and second...
Patent number
11,498,157
Issue date
Nov 15, 2022
GM Global Technology Operations LLC
Pei-Chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of joining steel having different resistivities
Patent number
11,383,319
Issue date
Jul 12, 2022
GM Global Technology Operations LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Clamp system and method for control of welding a first substrate to...
Patent number
11,167,381
Issue date
Nov 9, 2021
GM Global Technology Operations LLC
Miguel A Saez
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir welding bobbin tool
Patent number
10,239,152
Issue date
Mar 26, 2019
GM Global Technology Operations LLC
Blair E. Carlson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for tube bender set-up
Patent number
8,534,110
Issue date
Sep 17, 2013
GM Global Technology Operations LLC
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Tool for and method of forming at tapped hole in a single pass
Patent number
8,220,301
Issue date
Jul 17, 2012
GM Global Technology Operations LLC
Mike M. Ghiran
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for joining tubes
Patent number
8,020,272
Issue date
Sep 20, 2011
GM Global Technology Operations LLC
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Two mode hydroform seal apparatus and method
Patent number
7,685,856
Issue date
Mar 30, 2010
GM Global Technology Operations, Inc.
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus for wiper die monitoring
Patent number
7,594,417
Issue date
Sep 29, 2009
GM Global Technology Operations, Inc.
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Bending apparatus and method of bending a metal object
Patent number
7,584,637
Issue date
Sep 8, 2009
GM Global Technology Operations, Inc.
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for forming a complex-shaped tubular structure
Patent number
7,484,298
Issue date
Feb 3, 2009
GM Global Technology Operations, Inc.
Spyros P. Mellas
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Tool for forming threaded hole in a hydroformed part
Patent number
7,441,433
Issue date
Oct 28, 2008
GM Global Technology Operations, Inc.
Mike M. Ghiran
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hydrotapping power unit
Patent number
7,003,995
Issue date
Feb 28, 2006
General Motors Corporation
Mircea M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for forming a threaded hole in a hydroformed part
Patent number
6,931,901
Issue date
Aug 23, 2005
General Motors Corporation
Mircea M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Hydrotapping power unit
Patent number
6,915,672
Issue date
Jul 12, 2005
General Motors Corporation
Mircea M. Ghiran
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Self-aligning non-pinching hydroforming dies
Patent number
6,584,821
Issue date
Jul 1, 2003
General Motors Company
Mircea M Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
SYSTEMS AND METHODS FOR WELDING VEHICLE COMPONENT ASSEMBLIES
Publication number
20240286232
Publication date
Aug 29, 2024
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Hassan GHASSEMI-ARMAKI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SYSTEMS, METHODS, AND APPARATUSES, OF AN ARC WELDING (AW) PROCESS...
Publication number
20230056400
Publication date
Feb 23, 2023
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Debejyo Chakraborty
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR WELD PERFORMANCE VALIDATION
Publication number
20210331265
Publication date
Oct 28, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Tingting Zhang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CLAMP SYSTEM AND METHOD FOR CONTROL OF WELDING A FIRST SUBSTRATE TO...
Publication number
20210237211
Publication date
Aug 5, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Miguel A. Saez
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SYSTEM AND METHOD OF ENHANCED AUTOMATED WELDING OF FIRST AND SECOND...
Publication number
20210237200
Publication date
Aug 5, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Real-Time Weld Quality Analysis Systems And Methods
Publication number
20210154773
Publication date
May 27, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung WANG
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
PRETREATMENT OF WELD FLANGES TO MITIGATE LIQUID METAL EMBRITTLEMENT...
Publication number
20210107086
Publication date
Apr 15, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF JOINING STEEL WORK-PIECES HAVING DIFFERENT GAUGE RATIOS
Publication number
20210086287
Publication date
Mar 25, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF JOINING STEEL HAVING DIFFERENT RESISTIVITIES
Publication number
20210069821
Publication date
Mar 11, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF RESISTANCE WELDING ZINC COATED STEEL
Publication number
20200406388
Publication date
Dec 31, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MANUFACTURING METHOD FOR WELDING A MULTI-SHEET ASSEMBLY
Publication number
20200055139
Publication date
Feb 20, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
PRETREATMENT OF WELD FLANGES TO MITIGATE LIQUID METAL EMBRITTLEMENT...
Publication number
20200016679
Publication date
Jan 16, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Resistance Spot Welding Workpiece Stack-Ups Having Steel Workpieces...
Publication number
20190314915
Publication date
Oct 17, 2019
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Pei-chung Wang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
FRICTION STIR WELDING BOBBIN TOOL
Publication number
20170304934
Publication date
Oct 26, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Blair E. Carlson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD AND APPARATUS FOR TUBE BENDER SET-UP
Publication number
20110174035
Publication date
Jul 21, 2011
GM Global Technology Operations, Inc.
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
TOOL FOR FINISHING A WELD JOINT BETWEEN TWO WIRE ELECTRODES
Publication number
20110138633
Publication date
Jun 16, 2011
GM Global Technology Operations, Inc.
Spyros P. Mellas
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
TOOL FOR AND METHOD OF FORMING AT TAPPED HOLE IN A SINGLE PASS
Publication number
20100008737
Publication date
Jan 14, 2010
GM Global Technology Operations, Inc.
MIKE M. GHIRAN
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
BENDING APPARATUS AND METHOD OF BENDING A METAL OBJECT
Publication number
20090178453
Publication date
Jul 16, 2009
GM Global Technology Operations, Inc.
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method for Joining Tubes
Publication number
20080256778
Publication date
Oct 23, 2008
GM Global Technology Operations, Inc.
Mike M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Tool for Forming Threaded Hole in a Hydroformed Part
Publication number
20080168817
Publication date
Jul 17, 2008
GM Global Technology Operations, Inc.
Mike M. Ghiran
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method for forming a complex-shaped tubular structure
Publication number
20070193013
Publication date
Aug 23, 2007
Spyros P. Mellas
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Hydrotapping power unit
Publication number
20050199029
Publication date
Sep 15, 2005
Mircea M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method and apparatus for forming a threaded hole in a hydroformed part
Publication number
20050081589
Publication date
Apr 21, 2005
Mircea M. Ghiran
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...