Steven Mark Groff has been granted 12 US patents while listed as an inventor at IBM . The first was granted in 2010 and the most recent in March 2017. Steven Mark Groff ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Steven Mark Groff in Tucson, AZ, US.
Patents per Year Patents granted per year, 2010 to 2017 Bar chart with a peak of 5 patents in 2011. peak 5 2010: 2 patents 2010 2011: 5 patents 2011 2012: 3 patents 2012 2015: 1 patents 2015 2017: 1 patents 2017
Issued Patents All Time
Profile Widget
Showing 1–12 of 12 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
9608430
Battery circuit fault protection in uninterruptable power sources
Jiwu Duan , John C. Elliott , Dennis W. Fried , Trung Le
2017-03-28
$2,520,000
9081004
Circuit for detecting analytes via nanoparticle-labeled substances with electromagnetic read-write heads
Dylan J. Boday , Louie A. Dickens , Icko Eric Timothy Iben , Wayne Alan McKinley , Lee C. Randall +3 more
2015-07-14
$7,900,000
8338982
Apparatus to maintain redundancy in four line system
Jiwu Duan , Trung Le
2012-12-25
8138625
Dual line active automatic transfer switch
Jiwu Duan , Trung Le , Juan Antonio Yanes
2012-03-20
$2,170,000
8097978
Extending backup times of uninterruptible power supplies
Trung Le
2012-01-17
$12,258,000
8039990
DC UPS configured as intrinsic power transfer switch
Trung Le
2011-10-18
$4,054,000
8022579
Brownout solution for electromechanical automatic transfer switch
Trung Le
2011-09-20
$5,575,000
7962776
Method and apparatus for detecting component removal while operating in a battery backup mode
Larry Juarez , Joseph Dean Ohrazda , Kenny Nian Gan Qiu
2011-06-14
$3,503,000
7898106
DC UPS configured as intrinsic power transfer switch
Trung Le
2011-03-01
$4,705,000
7868484
Worldwide adaptive multi-coil automatic transfer switch
Trung Le
2011-01-11
$2,856,000
7847435
Intrinsically balanced direct current uninterruptible power supply
Trung Le
2010-12-07
$5,600,000
7763993
DC UPS with auto-ranging backup voltage capability
Trung Le
2010-07-27
$6,569,000