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USPTO Patent Rankings Data through Dec 31, 2025
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Chee Keng Chang — 2 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Oracle: 1 patents #8,339 of 14,854Top 60%
Mountain View, CA: #6,291 of 11,022 inventorsTop 60%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Chee Keng Chang has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1996 and the most recent in October 2011. Chee Keng Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Chee Keng Chang in Mountain View, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8041884 Controller for non-volatile memories and methods of operating the memory controller 2011-10-18
5539680 Method and apparatus for analyzing finite state machines Samir Palnitkar, Prasad V. Saggurti, Ser-Hou Kuang, Guillermo Maturana 1996-07-23 $45,102,000