Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Charles Chambers — 3 Patents

ILIco Services Limited: 1 patents #11 of 20Top 60%
Memphis, TN: #555 of 1,908 inventorsTop 30%
Tennessee: #5,737 of 20,272 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Charles Chambers has been granted 3 US patents while listed as an inventor at Ico Services Limited. The first was granted in 1998 and the most recent in April 2001. Charles Chambers ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Charles Chambers in Memphis, TN, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6219615 Satellite position fixing 2001-04-17 $1,051,000
5993029 Lighting fixture globe attachment ring 1999-11-30
5716270 Frictionally mounted louvered diffuser 1998-02-10