King Sum Chu — 6 Patents at Lightpath Technologies

King Sum Chu has been granted 6 US patents while listed as an inventor at Lightpath Technologies. The first was granted in 2001 and the most recent in May 2008. King Sum Chu ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list King Sum Chu in Kowloon, CN.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7378600	Electronic circuit prototyping composite support	Eric Chan	2008-05-27
7335843	Computer keyboard backlighting	Sam E. J. Chan, W. Edward Church, Randall Krafft, W. STEVE RECTOR, WILL R. HARWOOD	2008-02-26
7068516	Enclosure with pre-formed interchangeable panels	Eric Chan	2006-06-27
6871978	Computer keyboard backlighting	Sam E. J. Chan, W. Edward Church, Randall Krafft	2005-03-29	$172,000
6765503	Backlighting for computer keyboard	Sam E. J. Chan, W. Edward Church, Randall Krafft	2004-07-20	$371,000
6322229	Backlighting for computer keyboard	Sam E. J. Chan, W. Edward Church, Randall Krafft	2001-11-27

King Sum Chu — 6 Patents

Issued Patents All Time

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