Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ralph MacKenzie — 4 Patents

DCDart Container: 3 patents #14 of 44Top 35%
WHWhirlpool: 1 patents #2,112 of 3,480Top 65%
Okemos, MI: #98 of 344 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
Ralph MacKenzie has been granted 4 US patents while listed as an inventor at Dart Container. The first was granted in 2008 and the most recent in August 2023. Ralph MacKenzie ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Ralph MacKenzie in Okemos, MI, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11718059 Process for forming a paper container and related methods and materials Chelsea Olcese, Randy Lamie 2023-08-08
7676909 Apparatus for assembling a closure tab to a lid Tyler DeLong, Ryan P. Gingras 2010-03-16
7523534 Method for assembling a closure tab to a lid Tyler DeLong, Ryan P. Gingras 2009-04-28 $10,729,000
7353582 Method for assembling a closure tab to a lid Tyler DeLong, Ryan P. Gingras 2008-04-08