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I Chang — 2 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%

ICIwei Technology Co.: 1 patents #2 of 3Top 70%

Kaohsiung, TW: #1,117 of 2,441 inventorsTop 50%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

2 Patents All Time

I Chang has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 2003 and the most recent in May 2007. I Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list I Chang in Kaohsiung, TW.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7218089	Method and apparatus for implementing same phase power supply scheme	Tai-Jou Chen, Tsai-Hsiang Chen, Chiang-Mao Chung	2007-05-15
6531789	Electric energy source having safety control device	—	2003-03-11

I Chang — 2 Patents

Issued Patents All Time

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