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

John C. Buchanan — 2 Patents

General Motors: 1 patents #9,441 of 18,328Top 55%
Lake Orion, MI: #289 of 676 inventorsTop 45%
Michigan: #35,377 of 86,293 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John C. Buchanan has been granted 2 US patents while listed as an inventor at General Motors. The first was granted in 1997 and the most recent in May 2018. John C. Buchanan ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John C. Buchanan in Lake Orion, MI, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9964199 Transmission storage oil level control with a solenoid on and off pulse Yan Chen, Samuel J. Harbin 2018-05-08 $16,307,000
5695644 Fluid treatment device and method Christopher Michael David Joslin 1997-12-09