Ping-Chih Chang — 2 Patents at Emcore

Ping-Chih Chang — 2 Patents

EMEmcore: 1 patents #132 of 226Top 60%

SASandia: 1 patents #980 of 2,107Top 50%

Albuquerque, NM: #1,737 of 4,547 inventorsTop 40%

New Mexico: #3,225 of 9,035 inventorsTop 40%

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

Ping-Chih Chang has been granted 2 US patents while listed as an inventor at Emcore. The first was granted in 2004 and the most recent in December 2025. Ping-Chih Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ping-Chih Chang in Albuquerque, NM, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
12504384	Wafer defect inspection system	Kaiyuan Fan	2025-12-23
6765242	Npn double heterostructure bipolar transistor with ingaasn base region	Albert G. Baca, Nein-Yi Li, Hong Q. Hou, Carol I. H. Ashby	2004-07-20

Ping-Chih Chang — 2 Patents

Issued Patents All Time

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