Stefan Maireanu has been granted 9 US patents while listed as an inventor at O2Micro . The first was granted in 2009 and the most recent in September 2015. Stefan Maireanu ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Stefan Maireanu in Sunnyvale, CA, US.
Patents per Year Patents granted per year, 2009 to 2015 Bar chart with a peak of 2 patents in 2010. peak 2 2009: 1 patents 2009 2010: 2 patents 2010 2011: 1 patents 2011 2012: 2 patents 2012 2013: 1 patents 2013 2014: 1 patents 2014 2015: 1 patents 2015
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
9130378 Systems and methods for balancing battery cells William Densham , Constantin Bucur , Flavius Lupu , Jiun Heng Goh 2015-09-08
8907625 Battery management systems with vertical bus circuits Allan Flippin , William Densham , Jiun Heng Goh , Constantin Bucur , Flavius Lupu 2014-12-09
8598844 Systems and methods for balancing battery cells William Densham , Constantin Bucur , Flavius Lupu , Jiun Heng Goh 2013-12-03
8294421 Cell balancing systems employing transformers Constantin Bucur 2012-10-23
8148942 Charging systems with cell balancing functions William Densham , Constantin Bucur , Flavius Lupu , Jiun Heng Goh 2012-04-03
$734,000
7977911 Power supply topology Alex Hartular , Chun Lu , Jianping Xu , Xinhe Su , Xiaodong Wang 2011-07-12
$1,434,000
7804278 Topology and method for dynamic charging current allocation Chun Lu , Jianping Xu , Xiaohua Lei , Zhitong Lei , Yongqiang Yu 2010-09-28
$1,026,000
7737662 Power management circuit for battery pack Chun Lu , Luyang Luo , Lin Tang , Mingzhi He , Jianping Xu 2010-06-15
$2,301,000
7531989 Battery fuel gauge circuit — 2009-05-12
$2,346,000