Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John L. Ezzell — 3 Patents

DIDionex: 3 patents #37 of 171Top 25%
Layton, UT: #97 of 318 inventorsTop 35%
Utah: #6,119 of 19,430 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John L. Ezzell has been granted 3 US patents while listed as an inventor at Dionex. The first was granted in 1997 and the most recent in December 1998. John L. Ezzell ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John L. Ezzell in Layton, UT, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5843311 Accelerated solvent extraction method Bruce Richter, Christopher A. Pohl, Nathan L. Porter, Brian A. Jones, Nebojsha Avdalovic 1998-12-01 $7,946,000
5785856 Automated accelerated solvent extraction apparatus and method Gary L. Gleave, Norman J. Rothe, David W. Kemp, Bruce Richter 1998-07-28 $4,056,000
5660727 Automated analyte supercritical fluid extraction apparatus Gary L. Gleave, Norman J. Rothe, David W. Kemp, Bruce Richter 1997-08-26 $4,131,000