Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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E. David Ray — 4 Patents

BOBorgwarner: 3 patents #360 of 1,600Top 25%
BABorg-Warner Automotive: 1 patents #123 of 259Top 50%
Holly, MI: #49 of 192 inventorsTop 30%
Michigan: #22,248 of 86,293 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
E. David Ray has been granted 4 US patents while listed as an inventor at Borgwarner. The first was granted in 1998 and the most recent in August 2008. E. David Ray ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list E. David Ray in Holly, MI, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7416068 Power take-off clutch control system Todd L. Perttola 2008-08-26 $11,013,000
7301446 Method of detecting undersized, oversized, underinflated or overinflated tires Dan Reich, Todd B. Ferguson 2007-11-27 $30,579,000
6725992 Electromagnetic clutch control providing enhanced engagement Fredric H. Tubbs 2004-04-27 $3,154,000
5771477 Method and apparatus for synchronizing low to high transfer case shifts Dan J. Showalter, Richard K. Rader, Gary A. Oliveira 1998-06-23 $7,654,000