Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Win Chang — 5 Patents

INInput/Output: 4 patents #12 of 149Top 9%
I(I/O Exploration Products (U.S.A.): 1 patents #2 of 12Top 20%
Houston, TX: #4,540 of 21,073 inventorsTop 25%
Texas: #28,633 of 125,132 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Win Chang has been granted 5 US patents while listed as an inventor at Input/Output. The first was granted in 1997 and the most recent in July 1999. Win Chang ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Win Chang in Houston, TX, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5923616 Communication coil housing for a solid marine seismic cable Algernon S. Badger, Richard H. Luce, Hoan P. Nguyen, Christopher A. Neighbors 1999-07-13 $8,035,000
5867451 Solid marine seismic cable assembly Algernon S. Badger, Richard H. Luce, David S. Lamance, Hoan P. Nguyen, Christopher A. Neighbors 1999-02-02 $5,288,000
5796676 Hydrophone module for a marine seismic cable Algernon S. Badger, Richard H. Luce, David S. Lamance, Hoan P. Nguyen, Christopher A. Neighbors 1998-08-18 $8,750,000
5781510 Hydrophone housing for a solid marine seismic cable Algernon S. Badger, Richard H. Luce, David S. Lamance, Hoan P. Nguyen, Christopher A. Neighbors 1998-07-14 $10,408,000
5642332 Acoustic transducer Algernon S. Badger, Bernard Simensky 1997-06-24