Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John Stewart — 7 Patents

SMSpin Master: 2 patents #67 of 168Top 40%
WLWorlds Apart Limited: 1 patents #2 of 6Top 35%
YHYahoo Holdings: 1 patents #1,285 of 2,500Top 55%
TITexas Instruments: 1 patents #7,388 of 12,488Top 60%
Pitney Bowes: 1 patents #1,076 of 1,313Top 85%
Stamford, CT: #236 of 1,447 inventorsTop 20%
Connecticut: #6,462 of 34,797 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
John Stewart has been granted 7 US patents while listed as an inventor at Spin Master. The first was granted in 1984 and the most recent in April 2010. John Stewart ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list John Stewart in Stamford, CT, US.

Patents per Year

Patents granted per year, 1984 to 2010Bar chart with a peak of 2 patents in 2006.peak 21984: 1 patents19841991: 1 patents19911999: 1 patents19992004: 1 patents20042006: 2 patents20062010: 1 patents2010

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7707140 Information retrieval system and method employing spatially selective features Peter Leishman, Peter Forth 2010-04-27 $13,392,000
7051386 Sleeping structure Stephen Alexander Jacklin, Ray Smith 2006-05-30 $9,836,000
6990696 Sleeping structure Stephen Alexander Jacklin, Ray Smith 2006-01-31 $9,499,000
6799339 Sleeping structure 2004-10-05
5904406 Headrest 1999-05-18
4993534 Method and apparatus for reliable integrated circuit package construction Anthony L. Adams 1991-02-19 $3,254,000
D273568 Postal scale George H. Woods 1984-04-24