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USPTO Patent Rankings Data through Dec 31, 2025
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Phillip Chao — 1 Patent

ATAT&T: 1 patents #10,636 of 18,772Top 60%
Naperville, IL: #1,865 of 3,051 inventorsTop 65%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Phillip Chao has been granted 1 US patent while listed as an inventor at AT&T. All of these patents were granted in 1991. Phillip Chao ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Phillip Chao in Naperville, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5029163 Synchronous protocol data formatter Bong S. Choe, Robert C. Fairfield, Thomas L. Hiller, Robert W. King, III, Joel D. Peshkin +1 more 1991-07-02