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

Carl Romack — 4 Patents

General Motors: 2 patents #6,303 of 18,328Top 35%
LILinamar: 1 patents #23 of 56Top 45%
Ann Arbor, MI: #1,956 of 6,071 inventorsTop 35%
Michigan: #22,248 of 86,293 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Carl Romack has been granted 4 US patents while listed as an inventor at General Motors. The first was granted in 2008 and the most recent in October 2021. Carl Romack ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Carl Romack in Ann Arbor, MI, US.

Patents per Year

Patents granted per year, 2008 to 2021Bar chart with a peak of 1 patents in 2008.peak 12008: 1 patents20082009: 1 patents20092013: 1 patents20132021: 1 patents2021

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11155160 Disconnect clutch for a tandem axle assembly John Castellano, Thomas Reedy, Todd Ekonen, Jochen Wolkenstein, Konrad O. Bachmann +2 more 2021-10-26
8534642 Seal member for fluid transfer system Dale Moretz 2013-09-17
7500697 Snap ring locking clip and method 2009-03-10 $5,834,000
7364395 Snap ring design with anti-rotation structures at outer diameter Michael J. Grimmer 2008-04-29 $17,184,000