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

Richard I. Chang — 5 Patents

General Motors: 5 patents #3,105 of 18,328Top 20%
Ann Arbor, MI: #1,658 of 6,071 inventorsTop 30%
Michigan: #18,552 of 86,293 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Richard I. Chang has been granted 5 US patents while listed as an inventor at General Motors. The first was granted in 2017 and the most recent in April 2020. Richard I. Chang ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Richard I. Chang in Ann Arbor, MI, US.

Patents per Year

Patents granted per year, 2017 to 2020Bar chart with a peak of 2 patents in 2019.peak 22017: 1 patents20172019: 2 patents20192020: 2 patents2020

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10611323 Engine sound enhancement systems and methods for gear shifts Frank C. Valeri, Glenn Pietila 2020-04-07 $14,405,000
10583838 Systems and methods of automatic braking for manual transmissions 2020-03-10 $23,112,000
10229232 Predictive tachometer profile generation during transmission shift events Matthew D. Whitton 2019-03-12 $20,193,000
10174693 Predictive tachometer profile generation during idle revving events Matthew D. Whitton 2019-01-08 $15,703,000
9719595 Active rev-matching for manual transmissions Bradford W. Bur, Edward J. Rodenbo, Shaun D. Hoffman 2017-08-01 $13,220,000