Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DC

Douglas C. Covert — 2 Patents

ZYZymogenetics: 2 patents #162 of 284Top 60%
Mukilteo, WA: #170 of 399 inventorsTop 45%
Washington: #35,300 of 76,902 inventorsTop 50%
Overall (All Time): #2,123,713 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7745176 IL-21 production in prokaryotic hosts Bruce L. Zamost 2010-06-29
7250274 IL-21 production in prokaryotic hosts Chung Chan, Bruce L. Zamost, Hong Liu, Karen S. De Jongh, Jeffrey D. Meyer +1 more 2007-07-31