Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
TC

Thomas W. Chang — 5 Patents

Apple: 3 patents #7,530 of 18,612Top 45%
Walnut Creek, CA: #345 of 1,300 inventorsTop 30%
California: #107,996 of 386,348 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Thomas W. Chang has been granted 5 US patents while listed as an inventor at Apple. The first was granted in 2013 and the most recent in April 2025. Thomas W. Chang ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Thomas W. Chang in Walnut Creek, CA, US.

Patents per Year

Patents granted per year, 2013 to 2025Bar chart with a peak of 2 patents in 2013.peak 22013: 2 patents20132014: 1 patents20142023: 1 patents20232025: 1 patents2025

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D1068494 Suspended tissue-box holder assembly 2025-04-01
11697377 Suspended tissue-box holder assembly 2023-07-11
8706044 Methods of testing wireless devices in over-the-air radio-frequency test systems without path loss characterization Adil Syed, David A. Donovan 2014-04-22 $56,643,000
8600309 Methods for dynamic calibration of over-the-air path loss in over-the-air radio-frequency test systems Justin Gregg 2013-12-03 $83,608,000
8527229 Test systems with multiple antennas for characterizing over-the-air path loss Peter Bevelacqua 2013-09-03 $78,699,000