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Steven Mark Groff
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Tucson, AZ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Battery circuit fault protection in uninterruptable power sources
Patent number
9,608,430
Issue date
Mar 28, 2017
International Business Machines Corporation
Jiwu Duan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Circuit for detecting analytes via nanoparticle-labeled substances...
Patent number
9,081,004
Issue date
Jul 14, 2015
International Business Machines Corporation
Dylan Joseph Boday
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Apparatus to maintain redundancy in four line system
Patent number
8,338,982
Issue date
Dec 25, 2012
International Business Machines Corporation
Jiwu Duan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Dual line active automatic transfer switch
Patent number
8,138,625
Issue date
Mar 20, 2012
International Business Machines Corporation
Jiwu Duan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Extending backup times of uninterruptible power supplies
Patent number
8,097,978
Issue date
Jan 17, 2012
International Business Machines Corporation
Steven Mark Groff
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC UPS configured as intrinsic power transfer switch
Patent number
8,039,990
Issue date
Oct 18, 2011
International Business Machines Corporation
Steven Mark Groff
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Brownout solution for electromechanical automatic transfer switch
Patent number
8,022,579
Issue date
Sep 20, 2011
International Business Machines Corporation
Steven Mark Groff
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method and apparatus for detecting component removal while operatin...
Patent number
7,962,776
Issue date
Jun 14, 2011
International Business Machines Corporation
Steven Mark Groff
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
DC UPS configured as intrinsic power transfer switch
Patent number
7,898,106
Issue date
Mar 1, 2011
International Business Machines Corporation
Steven Mark Groff
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Worldwide adaptive multi-coil automatic transfer switch
Patent number
7,868,484
Issue date
Jan 11, 2011
International Business Machines Corporation
Steven Mark Groff
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Intrinsically balanced direct current uninterruptible power supply
Patent number
7,847,435
Issue date
Dec 7, 2010
International Business Machines Corporation
Steven Mark Groff
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC UPS with auto-ranging backup voltage capability
Patent number
7,763,993
Issue date
Jul 27, 2010
International Business Machines Corporation
Steven Mark Groff
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
Battery Circuit Fault Protection in Uninterruptable Power Sources
Publication number
20140307358
Publication date
Oct 16, 2014
International Business Machines Corporation
Jiwu Duan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
APPARATUS TO MAINTAIN REDUNDANCY IN FOUR LINE SYSTEM
Publication number
20110225452
Publication date
Sep 15, 2011
International Business Machines Corporation
Jiwu DUAN
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CIRCUIT FOR DETECTING ANALYTES VIA NANOPARTICLE-LABELED SUBSTANCES...
Publication number
20110077869
Publication date
Mar 31, 2011
International Business Machines Corporation
Dylan Joseph Boday
G01 - MEASURING TESTING
Information
Patent Application
DUAL LINE ACTIVE AUTOMATIC TRANSFER SWITCH
Publication number
20110068625
Publication date
Mar 24, 2011
International Business Machines Corporation
Jiwu DUAN
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DC UPS CONFIGURED AS INTRINSIC POWER TRANSFER SWITCH
Publication number
20110041323
Publication date
Feb 24, 2011
International Business Machines Corporation
Steven Mark GROFF
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
BROWNOUT SOLUTION FOR ELECTROMECHANICAL AUTOMATIC TRANSFER SWITCH
Publication number
20100033274
Publication date
Feb 11, 2010
International Business Machines Corporation
Steven Mark GROFF
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WORLDWIDE ADAPTIVE MULTI-COIL AUTOMATIC TRANSFER SWITCH
Publication number
20100033275
Publication date
Feb 11, 2010
International Business Machines Corporation
Steven Mark GROFF
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
INTRINSICALLY BALANCED DIRECT CURRENT UNINTERRUPTIBLE POWER SUPPLY
Publication number
20100013311
Publication date
Jan 21, 2010
International Business Machines Corporation
Steven Mark GROFF
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
EXTENDING BACKUP TIMES OF UNINTERRUPTIBLE POWER SUPPLIES
Publication number
20100013314
Publication date
Jan 21, 2010
International Business Machines Corporation
Steven Mark GROFF
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
DC UPS CONFIGURED AS INTRINSIC POWER TRANSFER SWITCH
Publication number
20100013313
Publication date
Jan 21, 2010
International Business Machines Corporation
Steven Mark GROFF
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
DC UPS WITH AUTO-RANGING BACKUP VOLTAGE CAPABILITY
Publication number
20100013312
Publication date
Jan 21, 2010
International Business Machines Corporation
Steven Mark GROFF
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
METHOD AND APPARATUS FOR DETECTING COMPONENT REMOVAL WHILE OPERATIN...
Publication number
20090100282
Publication date
Apr 16, 2009
International Business Machines Corporation
STEVEN MARK GROFF
G06 - COMPUTING CALCULATING COUNTING