John Kalkman has been granted 9 US patents while listed as an inventor at Microsoft . The first was granted in 2006 and the most recent in November 2009. John Kalkman ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John Kalkman in Woodinville, WA, US.
Patents per Year Patents granted per year, 2006 to 2009 Bar chart with a peak of 5 patents in 2006. peak 5 2006: 5 patents 2006 2007: 1 patents 2007 2008: 2 patents 2008 2009: 1 patents 2009
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7620961 Open-architecture file system Jered Aasheim , Yongqi Yang 2009-11-17
$30,079,000
7350105 Power failure detection in a flash memory device Jered Aasheim , Yongqi Yang 2008-03-25
$28,373,000
7340647 Power failure detection and correction in a flash memory device Jered Aasheim , Yongqi Yang 2008-03-04
$48,041,000
7178061 Power failure detection and correction in a flash memory device Jered Aasheim , Yongqi Yang 2007-02-13
$37,863,000
7139883 Transactional file system for flash memory Jered Aasheim , Yongqi Yang 2006-11-21
$42,190,000
7093101 Dynamic data structures for tracking file system free space in a flash memory device Jered Aasheim , Yongqi Yang 2006-08-15
$34,347,000
7082512 Dynamic data structures for tracking file system free space in a flash memory device Jered Aasheim , Yongqi Yang 2006-07-25
$57,539,000
7076599 Transactional file system for flash memory Jered Aasheim , Yongqi Yang 2006-07-11
$31,416,000
7010662 Dynamic data structures for tracking file system free space in a flash memory device Jered Aasheim , Yongqi Yang 2006-03-07
$39,844,000
