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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Duane E. Johnson — 2 Patents

CACanji: 1 patents #29 of 50Top 60%
GEGenzyme: 1 patents #498 of 891Top 60%
University of California: 1 patents #8,022 of 18,278Top 45%
Encinitas, CA: #726 of 1,440 inventorsTop 55%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Duane E. Johnson has been granted 2 US patents while listed as an inventor at Canji. The first was granted in 1998 and the most recent in December 2001. Duane E. Johnson ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Duane E. Johnson in Encinitas, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6331524 Organ-specific targeting of cationic amphiphile / DNA complexes for gene therapy Ronald K. Scheule, Rebecca G. Bagley, Simon J. Eastman, Seng H. Cheng, John Marshall +8 more 2001-12-18
5851991 Therapeutic use of the retinoblastoma susceptibility gene product Wen-Hwa Lee, Eva Lee, David Goodrich, H. Michael Shepard, Nan Wang 1998-12-22